* [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-08 9:08 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-08 9:08 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/mfd/Kconfig | 12 +++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++++++ 6 files changed, 183 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..5fb0b4f --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,24 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2C { + compatible = "skyworks,sky81452"; + + backlight { + ... + }; + + regulator { + ... + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d415b38..ce76e10 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -122,6 +122,7 @@ silabs Silicon Laboratories simtek sii Seiko Instruments, Inc. sirf SiRF Technology, Inc. +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. spansion Spansion Inc. diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..acfb2e5 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C=y + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..191c656 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..566912f --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,113 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_register_devices(struct device *dev, + const struct sky81452_platform_data *pdata) +{ + struct mfd_cell cells[] = { + { + .name = "sky81452-bl", + .platform_data = pdata->bl_pdata, + .pdata_size = sizeof(*pdata->bl_pdata), + }, + { + .name = "sky81452-regulator", + .platform_data = pdata->regulator_init_data, + .pdata_size = sizeof(*pdata->regulator_init_data), + }, + }; + + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), + NULL, 0, NULL); +} + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct regmap *map; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + map = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(map)) + return PTR_ERR(map); + + i2c_set_clientdata(client, map); + + return sky81452_register_devices(dev, pdata); +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.0"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..8d8ed35 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include "linux/sky81452-backlight.h" +#include "linux/regulator/machine.h" + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-08 9:08 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-08 9:08 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely Cc: sameo, lee.jones, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/mfd/Kconfig | 12 +++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++++++ 6 files changed, 183 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..5fb0b4f --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,24 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2C { + compatible = "skyworks,sky81452"; + + backlight { + ... + }; + + regulator { + ... + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d415b38..ce76e10 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -122,6 +122,7 @@ silabs Silicon Laboratories simtek sii Seiko Instruments, Inc. sirf SiRF Technology, Inc. +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. spansion Spansion Inc. diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..acfb2e5 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C=y + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..191c656 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..566912f --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,113 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_register_devices(struct device *dev, + const struct sky81452_platform_data *pdata) +{ + struct mfd_cell cells[] = { + { + .name = "sky81452-bl", + .platform_data = pdata->bl_pdata, + .pdata_size = sizeof(*pdata->bl_pdata), + }, + { + .name = "sky81452-regulator", + .platform_data = pdata->regulator_init_data, + .pdata_size = sizeof(*pdata->regulator_init_data), + }, + }; + + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), + NULL, 0, NULL); +} + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct regmap *map; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + map = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(map)) + return PTR_ERR(map); + + i2c_set_clientdata(client, map); + + return sky81452_register_devices(dev, pdata); +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.0"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..8d8ed35 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include "linux/sky81452-backlight.h" +#include "linux/regulator/machine.h" + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-08 9:08 ` Gyungoh Yoo (?) @ 2014-08-12 1:51 ` GyungOh Yoo 2014-08-12 7:16 ` Lee Jones -1 siblings, 1 reply; 163+ messages in thread From: GyungOh Yoo @ 2014-08-12 1:51 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely Cc: sameo, lee.jones, 유경오, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel [-- Attachment #1: Type: text/plain, Size: 8883 bytes --] Hello, Can somebody please review if the code has anything to improve? Thanks. On Fri, Aug 8, 2014 at 6:08 PM, Gyungoh Yoo <gyungoh@gmail.com> wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ > .../devicetree/bindings/vendor-prefixes.txt | 1 + > drivers/mfd/Kconfig | 12 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 113 > +++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 ++++++ > 6 files changed, 183 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt > b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..5fb0b4f > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,24 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2C { > + compatible = "skyworks,sky81452"; > + > + backlight { > + ... > + }; > + > + regulator { > + ... > + }; > + }; > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt > b/Documentation/devicetree/bindings/vendor-prefixes.txt > index d415b38..ce76e10 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > simtek > sii Seiko Instruments, Inc. > sirf SiRF Technology, Inc. > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > spansion Spansion Inc. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..acfb2e5 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C=y > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..191c656 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o > intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..566912f > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,113 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_register_devices(struct device *dev, > + const struct sky81452_platform_data *pdata) > +{ > + struct mfd_cell cells[] = { > + { > + .name = "sky81452-bl", > + .platform_data = pdata->bl_pdata, > + .pdata_size = sizeof(*pdata->bl_pdata), > + }, > + { > + .name = "sky81452-regulator", > + .platform_data = pdata->regulator_init_data, > + .pdata_size = sizeof(*pdata->regulator_init_data), > + }, > + }; > + > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > + NULL, 0, NULL); > +} > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct regmap *map; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + map = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(map)) > + return PTR_ERR(map); > + > + i2c_set_clientdata(client, map); > + > + return sky81452_register_devices(dev, pdata); > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); > +MODULE_VERSION("1.0"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..8d8ed35 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include "linux/sky81452-backlight.h" > +#include "linux/regulator/machine.h" > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif > -- > 1.9.1 > > [-- Attachment #2: Type: text/html, Size: 11105 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-12 1:51 ` GyungOh Yoo @ 2014-08-12 7:16 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-12 7:16 UTC (permalink / raw) To: GyungOh Yoo Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, 유경오, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel On Tue, 12 Aug 2014, GyungOh Yoo wrote: > Can somebody please review if the code has anything to improve? - Please don't top post - if you have a comment about the code, make your comment below the line(s) you are referring to and cut out all surplus quotes, replacing with "[...]". - This driver was sent on Friday 4 days (1.5 working days) ago - please leave at least 2 weeks before 're-sending' your patches - don't poke. - The merge window is currently open - maintainers are usually busy sending pull-requests to Linus or taking a few days to have a breather after the previous cycle - things will ramp up again in a week or so. Someone will get round to reviewing your driver in due time. Please be patient. > On Fri, Aug 8, 2014 at 6:08 PM, Gyungoh Yoo <gyungoh@gmail.com> wrote: > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ > > .../devicetree/bindings/vendor-prefixes.txt | 1 + > > drivers/mfd/Kconfig | 12 +++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 113 > > +++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 ++++++ > > 6 files changed, 183 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt > > b/Documentation/devicetree/bindings/mfd/sky81452.txt > > new file mode 100644 > > index 0000000..5fb0b4f > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > > @@ -0,0 +1,24 @@ > > +SKY81452 bindings > > + > > +Required properties: > > +- compatible : Must be "skyworks,sky81452" > > + > > +Required child nodes: > > +- backlight : container node for backlight following the binding > > + in video/backlight/sky81452-backlight.txt > > +- regulator : container node for regulators following the binding > > + in regulator/sky81452-regulator.txt > > + > > +Example: > > + > > + sky81452@2C { > > + compatible = "skyworks,sky81452"; > > + > > + backlight { > > + ... > > + }; > > + > > + regulator { > > + ... > > + }; > > + }; > > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt > > b/Documentation/devicetree/bindings/vendor-prefixes.txt > > index d415b38..ce76e10 100644 > > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > > simtek > > sii Seiko Instruments, Inc. > > sirf SiRF Technology, Inc. > > +skyworks Skyworks Solutions, Inc. > > smsc Standard Microsystems Corporation > > snps Synopsys, Inc. > > spansion Spansion Inc. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index de5abf2..acfb2e5 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config SKY81452 > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C=y > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index f001487..191c656 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > > obj-$(CONFIG_MFD_AS3722) += as3722.o > > obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > +obj-$(CONFIG_SKY81452) += sky81452.o > > > > intel-soc-pmic-objs := intel_soc_pmic_core.o > > intel_soc_pmic_crc.o > > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > > new file mode 100644 > > index 0000000..566912f > > --- /dev/null > > +++ b/drivers/mfd/sky81452.c > > @@ -0,0 +1,113 @@ > > +/* > > + * sky81452.c SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/err.h> > > +#include <linux/slab.h> > > +#include <linux/i2c.h> > > +#include <linux/regmap.h> > > +#include <linux/mfd/core.h> > > +#include <linux/mfd/sky81452.h> > > + > > +static const struct regmap_config sky81452_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int sky81452_register_devices(struct device *dev, > > + const struct sky81452_platform_data *pdata) > > +{ > > + struct mfd_cell cells[] = { > > + { > > + .name = "sky81452-bl", > > + .platform_data = pdata->bl_pdata, > > + .pdata_size = sizeof(*pdata->bl_pdata), > > + }, > > + { > > + .name = "sky81452-regulator", > > + .platform_data = pdata->regulator_init_data, > > + .pdata_size = sizeof(*pdata->regulator_init_data), > > + }, > > + }; > > + > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > + NULL, 0, NULL); > > +} > > + > > +static int sky81452_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > +{ > > + struct device *dev = &client->dev; > > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > > + struct regmap *map; > > + > > + if (!pdata) { > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) > > + return -ENOMEM; > > + } > > + > > + map = devm_regmap_init_i2c(client, &sky81452_config); > > + if (IS_ERR(map)) > > + return PTR_ERR(map); > > + > > + i2c_set_clientdata(client, map); > > + > > + return sky81452_register_devices(dev, pdata); > > +} > > + > > +static int sky81452_remove(struct i2c_client *client) > > +{ > > + mfd_remove_devices(&client->dev); > > + return 0; > > +} > > + > > +static const struct i2c_device_id sky81452_ids[] = { > > + { "sky81452", 0 }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > + > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL"); > > +MODULE_VERSION("1.0"); > > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > > new file mode 100644 > > index 0000000..8d8ed35 > > --- /dev/null > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 backlight driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include "linux/sky81452-backlight.h" > > +#include "linux/regulator/machine.h" > > + > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > > > > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <1407488899-31065-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-08 9:08 ` Gyungoh Yoo @ 2014-08-12 2:21 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-12 2:21 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA Hello, Can somebody please review if the code has anything to improve? Thanks. On Fri, Aug 08, 2014 at 06:08:19PM +0900, Gyungoh Yoo wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ > .../devicetree/bindings/vendor-prefixes.txt | 1 + > drivers/mfd/Kconfig | 12 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 ++++++ > 6 files changed, 183 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..5fb0b4f > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,24 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2C { > + compatible = "skyworks,sky81452"; > + > + backlight { > + ... > + }; > + > + regulator { > + ... > + }; > + }; > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > index d415b38..ce76e10 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > simtek > sii Seiko Instruments, Inc. > sirf SiRF Technology, Inc. > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > spansion Spansion Inc. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..acfb2e5 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C=y > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..191c656 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..566912f > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,113 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_register_devices(struct device *dev, > + const struct sky81452_platform_data *pdata) > +{ > + struct mfd_cell cells[] = { > + { > + .name = "sky81452-bl", > + .platform_data = pdata->bl_pdata, > + .pdata_size = sizeof(*pdata->bl_pdata), > + }, > + { > + .name = "sky81452-regulator", > + .platform_data = pdata->regulator_init_data, > + .pdata_size = sizeof(*pdata->regulator_init_data), > + }, > + }; > + > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > + NULL, 0, NULL); > +} > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct regmap *map; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + map = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(map)) > + return PTR_ERR(map); > + > + i2c_set_clientdata(client, map); > + > + return sky81452_register_devices(dev, pdata); > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > +MODULE_LICENSE("GPL"); > +MODULE_VERSION("1.0"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..8d8ed35 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include "linux/sky81452-backlight.h" > +#include "linux/regulator/machine.h" > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-12 2:21 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-12 2:21 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely Cc: sameo, lee.jones, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel Hello, Can somebody please review if the code has anything to improve? Thanks. On Fri, Aug 08, 2014 at 06:08:19PM +0900, Gyungoh Yoo wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ > .../devicetree/bindings/vendor-prefixes.txt | 1 + > drivers/mfd/Kconfig | 12 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 ++++++ > 6 files changed, 183 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..5fb0b4f > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,24 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2C { > + compatible = "skyworks,sky81452"; > + > + backlight { > + ... > + }; > + > + regulator { > + ... > + }; > + }; > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > index d415b38..ce76e10 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > simtek > sii Seiko Instruments, Inc. > sirf SiRF Technology, Inc. > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > spansion Spansion Inc. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..acfb2e5 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C=y > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..191c656 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..566912f > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,113 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_register_devices(struct device *dev, > + const struct sky81452_platform_data *pdata) > +{ > + struct mfd_cell cells[] = { > + { > + .name = "sky81452-bl", > + .platform_data = pdata->bl_pdata, > + .pdata_size = sizeof(*pdata->bl_pdata), > + }, > + { > + .name = "sky81452-regulator", > + .platform_data = pdata->regulator_init_data, > + .pdata_size = sizeof(*pdata->regulator_init_data), > + }, > + }; > + > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > + NULL, 0, NULL); > +} > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct regmap *map; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + map = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(map)) > + return PTR_ERR(map); > + > + i2c_set_clientdata(client, map); > + > + return sky81452_register_devices(dev, pdata); > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); > +MODULE_VERSION("1.0"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..8d8ed35 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include "linux/sky81452-backlight.h" > +#include "linux/regulator/machine.h" > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif > -- > 1.9.1 > ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-08 9:08 ` Gyungoh Yoo @ 2014-08-21 9:45 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-21 9:45 UTC (permalink / raw) To: Gyungoh Yoo Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A, sameo-VuQAYsv1563Yd54FQh9/CA, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA When you send patch-sets, you should send them connected to one another AKA threaded. That way, when we're reviewing we can look at the other patches in the set for reference. See the man page for `git send-email` for details. <commit log> > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ Binding documents should be sent separately: See: Documentation/devicetree/bindings/submitting-patches.txt > .../devicetree/bindings/vendor-prefixes.txt | 1 + This can go in with the documentation. > drivers/mfd/Kconfig | 12 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 ++++++ > 6 files changed, 183 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..5fb0b4f > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,24 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2C { Lower case. > + compatible = "skyworks,sky81452"; "reg"? You also need to document the 'compatible' and 'reg' properties. > + backlight { > + ... > + }; > + > + regulator { > + ... > + }; > + }; I think it would be helpful to place a fully populated example in here. > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > index d415b38..ce76e10 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > simtek > sii Seiko Instruments, Inc. > sirf SiRF Technology, Inc. > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > spansion Spansion Inc. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..acfb2e5 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config SKY81452 MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C=y Why do you need I2C to be built-in, rather than as a module? > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..191c656 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..566912f > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,113 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_register_devices(struct device *dev, > + const struct sky81452_platform_data *pdata) > +{ > + struct mfd_cell cells[] = { > + { > + .name = "sky81452-bl", > + .platform_data = pdata->bl_pdata, > + .pdata_size = sizeof(*pdata->bl_pdata), Have you tested this with DT? You're not passing the compatible string and not using of_platform_populate() so I'm struggling to see how it would work properly. > + }, > + { > + .name = "sky81452-regulator", > + .platform_data = pdata->regulator_init_data, > + .pdata_size = sizeof(*pdata->regulator_init_data), > + }, > + }; Please declare this outside of the function? > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > + NULL, 0, NULL); This doesn't really need to be in a function of its own. Please put it in .probe(). Also check for the return value and present the user with an error message if it fails. > +} > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) Line up against '('. > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct regmap *map; Can you call this 'regmap' for clarity. > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + map = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(map)) > + return PTR_ERR(map); I'm not sure you want this to fail silently. > + i2c_set_clientdata(client, map); > + > + return sky81452_register_devices(dev, pdata); > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452", 0 }, Remove the second attribute, it's unused. > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif You can drop the #differy the compiler should sort that out on the back of of_match_ptr(). > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > +MODULE_LICENSE("GPL"); I think you want v2. > +MODULE_VERSION("1.0"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..8d8ed35 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 backlight driver If it's a just a backlight driver, why is it in MFD? You'd best expand the description here. > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include "linux/sky81452-backlight.h" > +#include "linux/regulator/machine.h" s/"/< and > > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-21 9:45 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-21 9:45 UTC (permalink / raw) To: Gyungoh Yoo Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel When you send patch-sets, you should send them connected to one another AKA threaded. That way, when we're reviewing we can look at the other patches in the set for reference. See the man page for `git send-email` for details. <commit log> > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ Binding documents should be sent separately: See: Documentation/devicetree/bindings/submitting-patches.txt > .../devicetree/bindings/vendor-prefixes.txt | 1 + This can go in with the documentation. > drivers/mfd/Kconfig | 12 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 ++++++ > 6 files changed, 183 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..5fb0b4f > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,24 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2C { Lower case. > + compatible = "skyworks,sky81452"; "reg"? You also need to document the 'compatible' and 'reg' properties. > + backlight { > + ... > + }; > + > + regulator { > + ... > + }; > + }; I think it would be helpful to place a fully populated example in here. > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > index d415b38..ce76e10 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > simtek > sii Seiko Instruments, Inc. > sirf SiRF Technology, Inc. > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > spansion Spansion Inc. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..acfb2e5 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config SKY81452 MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C=y Why do you need I2C to be built-in, rather than as a module? > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..191c656 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..566912f > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,113 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_register_devices(struct device *dev, > + const struct sky81452_platform_data *pdata) > +{ > + struct mfd_cell cells[] = { > + { > + .name = "sky81452-bl", > + .platform_data = pdata->bl_pdata, > + .pdata_size = sizeof(*pdata->bl_pdata), Have you tested this with DT? You're not passing the compatible string and not using of_platform_populate() so I'm struggling to see how it would work properly. > + }, > + { > + .name = "sky81452-regulator", > + .platform_data = pdata->regulator_init_data, > + .pdata_size = sizeof(*pdata->regulator_init_data), > + }, > + }; Please declare this outside of the function? > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > + NULL, 0, NULL); This doesn't really need to be in a function of its own. Please put it in .probe(). Also check for the return value and present the user with an error message if it fails. > +} > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) Line up against '('. > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct regmap *map; Can you call this 'regmap' for clarity. > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + map = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(map)) > + return PTR_ERR(map); I'm not sure you want this to fail silently. > + i2c_set_clientdata(client, map); > + > + return sky81452_register_devices(dev, pdata); > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452", 0 }, Remove the second attribute, it's unused. > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif You can drop the #differy the compiler should sort that out on the back of of_match_ptr(). > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); I think you want v2. > +MODULE_VERSION("1.0"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..8d8ed35 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 backlight driver If it's a just a backlight driver, why is it in MFD? You'd best expand the description here. > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include "linux/sky81452-backlight.h" > +#include "linux/regulator/machine.h" s/"/< and > > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-21 9:45 ` Lee Jones (?) @ 2014-08-21 9:59 ` Thierry Reding 2014-08-21 11:19 ` Lee Jones -1 siblings, 1 reply; 163+ messages in thread From: Thierry Reding @ 2014-08-21 9:59 UTC (permalink / raw) To: Lee Jones Cc: Gyungoh Yoo, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, andrew, silvio.fricke, devicetree, linux-kernel [-- Attachment #1: Type: text/plain, Size: 1728 bytes --] On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: [...] > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c [...] > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. [...] > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > You can drop the #differy the compiler should sort that out on the > back of of_match_ptr(). It won't, unfortunately. If !OF, then of_match_ptr(x) will evaluate to NULL, therefore sky81452_of_match will become unreferenced and cause the compiler to output a warning. I guess it could be made __maybe_unused, but I don't see that as much of an advantage over the #ifdef. > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL"); > > I think you want v2. The header comment says "... version 2, or (at your option) any later version.", so I think "GPL" is the right one here. Thierry [-- Attachment #2: Type: application/pgp-signature, Size: 819 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-21 9:59 ` Thierry Reding @ 2014-08-21 11:19 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-21 11:19 UTC (permalink / raw) To: Thierry Reding Cc: Gyungoh Yoo, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A, sameo-VuQAYsv1563Yd54FQh9/CA, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA On Thu, 21 Aug 2014, Thierry Reding wrote: > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > [...] > > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > [...] > > > + * This program is free software; you can redistribute it and/or modify it > > > + * under the terms of the GNU General Public License as published by the > > > + * Free Software Foundation; either version 2, or (at your option) any > > > + * later version. > [...] > > > + { } > > > +}; > > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > > + > > > +#ifdef CONFIG_OF > > > +static const struct of_device_id sky81452_of_match[] = { > > > + { .compatible = "skyworks,sky81452", }, > > > + { } > > > +}; > > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > > +#endif > > > > You can drop the #differy the compiler should sort that out on the > > back of of_match_ptr(). > > It won't, unfortunately. If !OF, then of_match_ptr(x) will evaluate to > NULL, therefore sky81452_of_match will become unreferenced and cause the > compiler to output a warning. I guess it could be made __maybe_unused, > but I don't see that as much of an advantage over the #ifdef. Yes, I suppose it would. That's sad. > > > +static struct i2c_driver sky81452_driver = { > > > + .driver = { > > > + .name = "sky81452", > > > + .of_match_table = of_match_ptr(sky81452_of_match), > > > + }, > > > + .probe = sky81452_probe, > > > + .remove = sky81452_remove, > > > + .id_table = sky81452_ids, > > > +}; > > > + > > > +module_i2c_driver(sky81452_driver); > > > + > > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > > > +MODULE_LICENSE("GPL"); > > > > I think you want v2. > > The header comment says "... version 2, or (at your option) any later > version.", so I think "GPL" is the right one here. Fair enough. Withdrawn. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-21 11:19 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-21 11:19 UTC (permalink / raw) To: Thierry Reding Cc: Gyungoh Yoo, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, andrew, silvio.fricke, devicetree, linux-kernel On Thu, 21 Aug 2014, Thierry Reding wrote: > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > [...] > > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > [...] > > > + * This program is free software; you can redistribute it and/or modify it > > > + * under the terms of the GNU General Public License as published by the > > > + * Free Software Foundation; either version 2, or (at your option) any > > > + * later version. > [...] > > > + { } > > > +}; > > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > > + > > > +#ifdef CONFIG_OF > > > +static const struct of_device_id sky81452_of_match[] = { > > > + { .compatible = "skyworks,sky81452", }, > > > + { } > > > +}; > > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > > +#endif > > > > You can drop the #differy the compiler should sort that out on the > > back of of_match_ptr(). > > It won't, unfortunately. If !OF, then of_match_ptr(x) will evaluate to > NULL, therefore sky81452_of_match will become unreferenced and cause the > compiler to output a warning. I guess it could be made __maybe_unused, > but I don't see that as much of an advantage over the #ifdef. Yes, I suppose it would. That's sad. > > > +static struct i2c_driver sky81452_driver = { > > > + .driver = { > > > + .name = "sky81452", > > > + .of_match_table = of_match_ptr(sky81452_of_match), > > > + }, > > > + .probe = sky81452_probe, > > > + .remove = sky81452_remove, > > > + .id_table = sky81452_ids, > > > +}; > > > + > > > +module_i2c_driver(sky81452_driver); > > > + > > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > > +MODULE_LICENSE("GPL"); > > > > I think you want v2. > > The header comment says "... version 2, or (at your option) any later > version.", so I think "GPL" is the right one here. Fair enough. Withdrawn. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-21 9:45 ` Lee Jones @ 2014-08-25 7:06 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-25 7:06 UTC (permalink / raw) To: Lee Jones Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A, sameo-VuQAYsv1563Yd54FQh9/CA, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA Thank you for reviewing the patches. On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > When you send patch-sets, you should send them connected to one > another AKA threaded. That way, when we're reviewing we can look at > the other patches in the set for reference. See the man page for `git > send-email` for details. > > <commit log> > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > --- > > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ > > Binding documents should be sent separately: > > See: Documentation/devicetree/bindings/submitting-patches.txt > > > .../devicetree/bindings/vendor-prefixes.txt | 1 + > > This can go in with the documentation. I see. I will re-send them separately. > > > drivers/mfd/Kconfig | 12 +++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 ++++++ > > 6 files changed, 183 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > > new file mode 100644 > > index 0000000..5fb0b4f > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > > @@ -0,0 +1,24 @@ > > +SKY81452 bindings > > + > > +Required properties: > > +- compatible : Must be "skyworks,sky81452" > > + > > +Required child nodes: > > +- backlight : container node for backlight following the binding > > + in video/backlight/sky81452-backlight.txt > > +- regulator : container node for regulators following the binding > > + in regulator/sky81452-regulator.txt > > + > > +Example: > > + > > + sky81452@2C { > > Lower case. > > > + compatible = "skyworks,sky81452"; > > "reg"? > > You also need to document the 'compatible' and 'reg' properties. > > > + backlight { > > + ... > > + }; > > + > > + regulator { > > + ... > > + }; > > + }; > > I think it would be helpful to place a fully populated example in > here. I will update it. > > > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > > index d415b38..ce76e10 100644 > > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > > simtek > > sii Seiko Instruments, Inc. > > sirf SiRF Technology, Inc. > > +skyworks Skyworks Solutions, Inc. > > smsc Standard Microsystems Corporation > > snps Synopsys, Inc. > > spansion Spansion Inc. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index de5abf2..acfb2e5 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config SKY81452 > > MFD_SKY81452 > > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C=y > > Why do you need I2C to be built-in, rather than as a module? It will depend only on I2C. > > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index f001487..191c656 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > > obj-$(CONFIG_MFD_AS3722) += as3722.o > > obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > +obj-$(CONFIG_SKY81452) += sky81452.o > > > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > > new file mode 100644 > > index 0000000..566912f > > --- /dev/null > > +++ b/drivers/mfd/sky81452.c > > @@ -0,0 +1,113 @@ > > +/* > > + * sky81452.c SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/err.h> > > +#include <linux/slab.h> > > +#include <linux/i2c.h> > > +#include <linux/regmap.h> > > +#include <linux/mfd/core.h> > > +#include <linux/mfd/sky81452.h> > > + > > +static const struct regmap_config sky81452_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int sky81452_register_devices(struct device *dev, > > + const struct sky81452_platform_data *pdata) > > +{ > > + struct mfd_cell cells[] = { > > + { > > + .name = "sky81452-bl", > > + .platform_data = pdata->bl_pdata, > > + .pdata_size = sizeof(*pdata->bl_pdata), > > Have you tested this with DT? > > You're not passing the compatible string and not using > of_platform_populate() so I'm struggling to see how it would work > properly. sky81452-bl and regulator-sky81452 is parsing the information in regulator node of its parent node. So I thought these 2 drivers don't need compatible attribute. That is what it didn't have compatible string. Is is mandatory that all drivers should have compatible attribute? > > > + }, > > + { > > + .name = "sky81452-regulator", > > + .platform_data = pdata->regulator_init_data, > > + .pdata_size = sizeof(*pdata->regulator_init_data), > > + }, > > + }; > > Please declare this outside of the function? I see. > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > + NULL, 0, NULL); > > This doesn't really need to be in a function of its own. Please put > it in .probe(). Also check for the return value and present the user > with an error message if it fails. I think this need to be, in case of !CONFIG_OF. Can you please explain more in details? > > > +} > > + > > +static int sky81452_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > Line up against '('. > > > +{ > > + struct device *dev = &client->dev; > > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > > + struct regmap *map; > > Can you call this 'regmap' for clarity. I see. Thank you. > > > + if (!pdata) { > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) > > + return -ENOMEM; > > + } > > + > > + map = devm_regmap_init_i2c(client, &sky81452_config); > > + if (IS_ERR(map)) > > + return PTR_ERR(map); > > I'm not sure you want this to fail silently. > > > + i2c_set_clientdata(client, map); > > + > > + return sky81452_register_devices(dev, pdata); > > +} > > + > > +static int sky81452_remove(struct i2c_client *client) > > +{ > > + mfd_remove_devices(&client->dev); > > + return 0; > > +} > > + > > +static const struct i2c_device_id sky81452_ids[] = { > > + { "sky81452", 0 }, > > Remove the second attribute, it's unused. > > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > You can drop the #differy the compiler should sort that out on the > back of of_match_ptr(). > > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > > +MODULE_LICENSE("GPL"); > > I think you want v2. > > > +MODULE_VERSION("1.0"); > > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > > new file mode 100644 > > index 0000000..8d8ed35 > > --- /dev/null > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 backlight driver > > If it's a just a backlight driver, why is it in MFD? > > You'd best expand the description here. Sorry about that. I missed it. > > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include "linux/sky81452-backlight.h" > > +#include "linux/regulator/machine.h" > > s/"/< and > > > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-25 7:06 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-25 7:06 UTC (permalink / raw) To: Lee Jones Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel Thank you for reviewing the patches. On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > When you send patch-sets, you should send them connected to one > another AKA threaded. That way, when we're reviewing we can look at > the other patches in the set for reference. See the man page for `git > send-email` for details. > > <commit log> > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > Documentation/devicetree/bindings/mfd/sky81452.txt | 24 +++++ > > Binding documents should be sent separately: > > See: Documentation/devicetree/bindings/submitting-patches.txt > > > .../devicetree/bindings/vendor-prefixes.txt | 1 + > > This can go in with the documentation. I see. I will re-send them separately. > > > drivers/mfd/Kconfig | 12 +++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 113 +++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 ++++++ > > 6 files changed, 183 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > > > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > > new file mode 100644 > > index 0000000..5fb0b4f > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > > @@ -0,0 +1,24 @@ > > +SKY81452 bindings > > + > > +Required properties: > > +- compatible : Must be "skyworks,sky81452" > > + > > +Required child nodes: > > +- backlight : container node for backlight following the binding > > + in video/backlight/sky81452-backlight.txt > > +- regulator : container node for regulators following the binding > > + in regulator/sky81452-regulator.txt > > + > > +Example: > > + > > + sky81452@2C { > > Lower case. > > > + compatible = "skyworks,sky81452"; > > "reg"? > > You also need to document the 'compatible' and 'reg' properties. > > > + backlight { > > + ... > > + }; > > + > > + regulator { > > + ... > > + }; > > + }; > > I think it would be helpful to place a fully populated example in > here. I will update it. > > > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > > index d415b38..ce76e10 100644 > > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > > @@ -122,6 +122,7 @@ silabs Silicon Laboratories > > simtek > > sii Seiko Instruments, Inc. > > sirf SiRF Technology, Inc. > > +skyworks Skyworks Solutions, Inc. > > smsc Standard Microsystems Corporation > > snps Synopsys, Inc. > > spansion Spansion Inc. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index de5abf2..acfb2e5 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config SKY81452 > > MFD_SKY81452 > > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C=y > > Why do you need I2C to be built-in, rather than as a module? It will depend only on I2C. > > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index f001487..191c656 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > > obj-$(CONFIG_MFD_AS3722) += as3722.o > > obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > +obj-$(CONFIG_SKY81452) += sky81452.o > > > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > > new file mode 100644 > > index 0000000..566912f > > --- /dev/null > > +++ b/drivers/mfd/sky81452.c > > @@ -0,0 +1,113 @@ > > +/* > > + * sky81452.c SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/err.h> > > +#include <linux/slab.h> > > +#include <linux/i2c.h> > > +#include <linux/regmap.h> > > +#include <linux/mfd/core.h> > > +#include <linux/mfd/sky81452.h> > > + > > +static const struct regmap_config sky81452_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int sky81452_register_devices(struct device *dev, > > + const struct sky81452_platform_data *pdata) > > +{ > > + struct mfd_cell cells[] = { > > + { > > + .name = "sky81452-bl", > > + .platform_data = pdata->bl_pdata, > > + .pdata_size = sizeof(*pdata->bl_pdata), > > Have you tested this with DT? > > You're not passing the compatible string and not using > of_platform_populate() so I'm struggling to see how it would work > properly. sky81452-bl and regulator-sky81452 is parsing the information in regulator node of its parent node. So I thought these 2 drivers don't need compatible attribute. That is what it didn't have compatible string. Is is mandatory that all drivers should have compatible attribute? > > > + }, > > + { > > + .name = "sky81452-regulator", > > + .platform_data = pdata->regulator_init_data, > > + .pdata_size = sizeof(*pdata->regulator_init_data), > > + }, > > + }; > > Please declare this outside of the function? I see. > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > + NULL, 0, NULL); > > This doesn't really need to be in a function of its own. Please put > it in .probe(). Also check for the return value and present the user > with an error message if it fails. I think this need to be, in case of !CONFIG_OF. Can you please explain more in details? > > > +} > > + > > +static int sky81452_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > Line up against '('. > > > +{ > > + struct device *dev = &client->dev; > > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > > + struct regmap *map; > > Can you call this 'regmap' for clarity. I see. Thank you. > > > + if (!pdata) { > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) > > + return -ENOMEM; > > + } > > + > > + map = devm_regmap_init_i2c(client, &sky81452_config); > > + if (IS_ERR(map)) > > + return PTR_ERR(map); > > I'm not sure you want this to fail silently. > > > + i2c_set_clientdata(client, map); > > + > > + return sky81452_register_devices(dev, pdata); > > +} > > + > > +static int sky81452_remove(struct i2c_client *client) > > +{ > > + mfd_remove_devices(&client->dev); > > + return 0; > > +} > > + > > +static const struct i2c_device_id sky81452_ids[] = { > > + { "sky81452", 0 }, > > Remove the second attribute, it's unused. > > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > You can drop the #differy the compiler should sort that out on the > back of of_match_ptr(). > > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL"); > > I think you want v2. > > > +MODULE_VERSION("1.0"); > > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > > new file mode 100644 > > index 0000000..8d8ed35 > > --- /dev/null > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 backlight driver > > If it's a just a backlight driver, why is it in MFD? > > You'd best expand the description here. Sorry about that. I missed it. > > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include "linux/sky81452-backlight.h" > > +#include "linux/regulator/machine.h" > > s/"/< and > > > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-25 7:06 ` Gyungoh Yoo @ 2014-08-26 8:22 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-26 8:22 UTC (permalink / raw) To: Gyungoh Yoo Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A, sameo-VuQAYsv1563Yd54FQh9/CA, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > When you send patch-sets, you should send them connected to one > > another AKA threaded. That way, when we're reviewing we can look at > > the other patches in the set for reference. See the man page for `git > > send-email` for details. > > > > <commit log> > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > --- [...] > > > +static int sky81452_register_devices(struct device *dev, > > > + const struct sky81452_platform_data *pdata) > > > +{ > > > + struct mfd_cell cells[] = { > > > + { > > > + .name = "sky81452-bl", > > > + .platform_data = pdata->bl_pdata, > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > Have you tested this with DT? > > > > You're not passing the compatible string and not using > > of_platform_populate() so I'm struggling to see how it would work > > properly. > > sky81452-bl and regulator-sky81452 is parsing the information > in regulator node of its parent node. So I thought these 2 drivers > don't need compatible attribute. That is what it didn't have > compatible string. > Is is mandatory that all drivers should have compatible attribute? How do they obtain their DT nodes? [...] > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > + NULL, 0, NULL); > > > > This doesn't really need to be in a function of its own. Please put > > it in .probe(). Also check for the return value and present the user > > with an error message if it fails. > > I think this need to be, in case of !CONFIG_OF. > Can you please explain more in details? Then how to you obtain the shared register map you created? [...] -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-26 8:22 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-26 8:22 UTC (permalink / raw) To: Gyungoh Yoo Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > When you send patch-sets, you should send them connected to one > > another AKA threaded. That way, when we're reviewing we can look at > > the other patches in the set for reference. See the man page for `git > > send-email` for details. > > > > <commit log> > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > --- [...] > > > +static int sky81452_register_devices(struct device *dev, > > > + const struct sky81452_platform_data *pdata) > > > +{ > > > + struct mfd_cell cells[] = { > > > + { > > > + .name = "sky81452-bl", > > > + .platform_data = pdata->bl_pdata, > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > Have you tested this with DT? > > > > You're not passing the compatible string and not using > > of_platform_populate() so I'm struggling to see how it would work > > properly. > > sky81452-bl and regulator-sky81452 is parsing the information > in regulator node of its parent node. So I thought these 2 drivers > don't need compatible attribute. That is what it didn't have > compatible string. > Is is mandatory that all drivers should have compatible attribute? How do they obtain their DT nodes? [...] > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > + NULL, 0, NULL); > > > > This doesn't really need to be in a function of its own. Please put > > it in .probe(). Also check for the return value and present the user > > with an error message if it fails. > > I think this need to be, in case of !CONFIG_OF. > Can you please explain more in details? Then how to you obtain the shared register map you created? [...] -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-26 8:22 ` Lee Jones @ 2014-08-27 4:06 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-27 4:06 UTC (permalink / raw) To: Lee Jones Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A, sameo-VuQAYsv1563Yd54FQh9/CA, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA On Tue, Aug 26, 2014 at 09:22:58AM +0100, Lee Jones wrote: > On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > > When you send patch-sets, you should send them connected to one > > > another AKA threaded. That way, when we're reviewing we can look at > > > the other patches in the set for reference. See the man page for `git > > > send-email` for details. > > > > > > <commit log> > > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > > --- > > [...] > > > > > +static int sky81452_register_devices(struct device *dev, > > > > + const struct sky81452_platform_data *pdata) > > > > +{ > > > > + struct mfd_cell cells[] = { > > > > + { > > > > + .name = "sky81452-bl", > > > > + .platform_data = pdata->bl_pdata, > > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > > > Have you tested this with DT? > > > > > > You're not passing the compatible string and not using > > > of_platform_populate() so I'm struggling to see how it would work > > > properly. > > > > sky81452-bl and regulator-sky81452 is parsing the information > > in regulator node of its parent node. So I thought these 2 drivers > > don't need compatible attribute. That is what it didn't have > > compatible string. > > Is is mandatory that all drivers should have compatible attribute? > > How do they obtain their DT nodes? The backlight driver which is one of the child driver is obtain its DT node like this np = of_get_child_by_name(dev->parent->of_node, "backlight"); > > [...] > > > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > > + NULL, 0, NULL); > > > > > > This doesn't really need to be in a function of its own. Please put > > > it in .probe(). Also check for the return value and present the user > > > with an error message if it fails. > > > > I think this need to be, in case of !CONFIG_OF. > > Can you please explain more in details? > > Then how to you obtain the shared register map you created? regmap is stored in driver data in MFD. i2c_set_clientdata(client, regmap); The child drivers obain the regmap from the parent. struct regmap *regmap = dev_get_drvdata(dev->parent); > > [...] > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-27 4:06 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-27 4:06 UTC (permalink / raw) To: Lee Jones Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel On Tue, Aug 26, 2014 at 09:22:58AM +0100, Lee Jones wrote: > On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > > When you send patch-sets, you should send them connected to one > > > another AKA threaded. That way, when we're reviewing we can look at > > > the other patches in the set for reference. See the man page for `git > > > send-email` for details. > > > > > > <commit log> > > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > --- > > [...] > > > > > +static int sky81452_register_devices(struct device *dev, > > > > + const struct sky81452_platform_data *pdata) > > > > +{ > > > > + struct mfd_cell cells[] = { > > > > + { > > > > + .name = "sky81452-bl", > > > > + .platform_data = pdata->bl_pdata, > > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > > > Have you tested this with DT? > > > > > > You're not passing the compatible string and not using > > > of_platform_populate() so I'm struggling to see how it would work > > > properly. > > > > sky81452-bl and regulator-sky81452 is parsing the information > > in regulator node of its parent node. So I thought these 2 drivers > > don't need compatible attribute. That is what it didn't have > > compatible string. > > Is is mandatory that all drivers should have compatible attribute? > > How do they obtain their DT nodes? The backlight driver which is one of the child driver is obtain its DT node like this np = of_get_child_by_name(dev->parent->of_node, "backlight"); > > [...] > > > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > > + NULL, 0, NULL); > > > > > > This doesn't really need to be in a function of its own. Please put > > > it in .probe(). Also check for the return value and present the user > > > with an error message if it fails. > > > > I think this need to be, in case of !CONFIG_OF. > > Can you please explain more in details? > > Then how to you obtain the shared register map you created? regmap is stored in driver data in MFD. i2c_set_clientdata(client, regmap); The child drivers obain the regmap from the parent. struct regmap *regmap = dev_get_drvdata(dev->parent); > > [...] > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-27 4:06 ` Gyungoh Yoo @ 2014-08-27 8:39 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-27 8:39 UTC (permalink / raw) To: Gyungoh Yoo Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, grant.likely-QSEj5FYQhm4dnm+yROfE0A, sameo-VuQAYsv1563Yd54FQh9/CA, jack.yoo-tjhQNA90jdKqndwCJWfcng, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA On Wed, 27 Aug 2014, Gyungoh Yoo wrote: > On Tue, Aug 26, 2014 at 09:22:58AM +0100, Lee Jones wrote: > > On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > > > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > > > When you send patch-sets, you should send them connected to one > > > > another AKA threaded. That way, when we're reviewing we can look at > > > > the other patches in the set for reference. See the man page for `git > > > > send-email` for details. > > > > > > > > <commit log> > > > > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > > > --- > > > > [...] > > > > > > > +static int sky81452_register_devices(struct device *dev, > > > > > + const struct sky81452_platform_data *pdata) > > > > > +{ > > > > > + struct mfd_cell cells[] = { > > > > > + { > > > > > + .name = "sky81452-bl", > > > > > + .platform_data = pdata->bl_pdata, > > > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > > > > > Have you tested this with DT? > > > > > > > > You're not passing the compatible string and not using > > > > of_platform_populate() so I'm struggling to see how it would work > > > > properly. > > > > > > sky81452-bl and regulator-sky81452 is parsing the information > > > in regulator node of its parent node. So I thought these 2 drivers > > > don't need compatible attribute. That is what it didn't have > > > compatible string. > > > Is is mandatory that all drivers should have compatible attribute? > > > > How do they obtain their DT nodes? > > The backlight driver which is one of the child driver is obtain its DT node like this > > np = of_get_child_by_name(dev->parent->of_node, "backlight"); The MFD core provides infrastructure so you don't have to do this. Just place the compatible string in 'struct mfd_cell cells[]' and the core will match and populate dev->of_node for you. > > [...] > > > > > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > > > + NULL, 0, NULL); > > > > > > > > This doesn't really need to be in a function of its own. Please put > > > > it in .probe(). Also check for the return value and present the user > > > > with an error message if it fails. > > > > > > I think this need to be, in case of !CONFIG_OF. > > > Can you please explain more in details? > > > > Then how to you obtain the shared register map you created? > > regmap is stored in driver data in MFD. > > i2c_set_clientdata(client, regmap); > > The child drivers obain the regmap from the parent. > > struct regmap *regmap = dev_get_drvdata(dev->parent); Ah yes, of course you do. Silly of me to miss this. I also just noticed that you're also manually populating the chlidren's platform data. It's easier if you do this from the child device drivers: const struct sky81452_platform_data ppdata = dev_get_platdata(dev->parent); const struct sky81452_bl_platform_data = pdata = ppdata->bl_pdata; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver @ 2014-08-27 8:39 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-08-27 8:39 UTC (permalink / raw) To: Gyungoh Yoo Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel On Wed, 27 Aug 2014, Gyungoh Yoo wrote: > On Tue, Aug 26, 2014 at 09:22:58AM +0100, Lee Jones wrote: > > On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > > > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > > > When you send patch-sets, you should send them connected to one > > > > another AKA threaded. That way, when we're reviewing we can look at > > > > the other patches in the set for reference. See the man page for `git > > > > send-email` for details. > > > > > > > > <commit log> > > > > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > > --- > > > > [...] > > > > > > > +static int sky81452_register_devices(struct device *dev, > > > > > + const struct sky81452_platform_data *pdata) > > > > > +{ > > > > > + struct mfd_cell cells[] = { > > > > > + { > > > > > + .name = "sky81452-bl", > > > > > + .platform_data = pdata->bl_pdata, > > > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > > > > > Have you tested this with DT? > > > > > > > > You're not passing the compatible string and not using > > > > of_platform_populate() so I'm struggling to see how it would work > > > > properly. > > > > > > sky81452-bl and regulator-sky81452 is parsing the information > > > in regulator node of its parent node. So I thought these 2 drivers > > > don't need compatible attribute. That is what it didn't have > > > compatible string. > > > Is is mandatory that all drivers should have compatible attribute? > > > > How do they obtain their DT nodes? > > The backlight driver which is one of the child driver is obtain its DT node like this > > np = of_get_child_by_name(dev->parent->of_node, "backlight"); The MFD core provides infrastructure so you don't have to do this. Just place the compatible string in 'struct mfd_cell cells[]' and the core will match and populate dev->of_node for you. > > [...] > > > > > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > > > + NULL, 0, NULL); > > > > > > > > This doesn't really need to be in a function of its own. Please put > > > > it in .probe(). Also check for the return value and present the user > > > > with an error message if it fails. > > > > > > I think this need to be, in case of !CONFIG_OF. > > > Can you please explain more in details? > > > > Then how to you obtain the shared register map you created? > > regmap is stored in driver data in MFD. > > i2c_set_clientdata(client, regmap); > > The child drivers obain the regmap from the parent. > > struct regmap *regmap = dev_get_drvdata(dev->parent); Ah yes, of course you do. Silly of me to miss this. I also just noticed that you're also manually populating the chlidren's platform data. It's easier if you do this from the child device drivers: const struct sky81452_platform_data ppdata = dev_get_platdata(dev->parent); const struct sky81452_bl_platform_data = pdata = ppdata->bl_pdata; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH 1/3] Adding Skyworks SKY81452 MFD driver 2014-08-27 8:39 ` Lee Jones (?) @ 2014-08-28 1:29 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 1:29 UTC (permalink / raw) To: Lee Jones Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, grant.likely, sameo, jack.yoo, jason, heiko.stuebner, florian.vaussard, thierry.reding, andrew, silvio.fricke, devicetree, linux-kernel On Wed, Aug 27, 2014 at 09:39:21AM +0100, Lee Jones wrote: > On Wed, 27 Aug 2014, Gyungoh Yoo wrote: > > On Tue, Aug 26, 2014 at 09:22:58AM +0100, Lee Jones wrote: > > > On Mon, 25 Aug 2014, Gyungoh Yoo wrote: > > > > On Thu, Aug 21, 2014 at 10:45:02AM +0100, Lee Jones wrote: > > > > > When you send patch-sets, you should send them connected to one > > > > > another AKA threaded. That way, when we're reviewing we can look at > > > > > the other patches in the set for reference. See the man page for `git > > > > > send-email` for details. > > > > > > > > > > <commit log> > > > > > > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > > > --- > > > > > > [...] > > > > > > > > > +static int sky81452_register_devices(struct device *dev, > > > > > > + const struct sky81452_platform_data *pdata) > > > > > > +{ > > > > > > + struct mfd_cell cells[] = { > > > > > > + { > > > > > > + .name = "sky81452-bl", > > > > > > + .platform_data = pdata->bl_pdata, > > > > > > + .pdata_size = sizeof(*pdata->bl_pdata), > > > > > > > > > > Have you tested this with DT? > > > > > > > > > > You're not passing the compatible string and not using > > > > > of_platform_populate() so I'm struggling to see how it would work > > > > > properly. > > > > > > > > sky81452-bl and regulator-sky81452 is parsing the information > > > > in regulator node of its parent node. So I thought these 2 drivers > > > > don't need compatible attribute. That is what it didn't have > > > > compatible string. > > > > Is is mandatory that all drivers should have compatible attribute? > > > > > > How do they obtain their DT nodes? > > > > The backlight driver which is one of the child driver is obtain its DT node like this > > > > np = of_get_child_by_name(dev->parent->of_node, "backlight"); > > The MFD core provides infrastructure so you don't have to do this. > > Just place the compatible string in 'struct mfd_cell cells[]' and the > core will match and populate dev->of_node for you. I see. Thank you. > > > > [...] > > > > > > > > > + return mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), > > > > > > + NULL, 0, NULL); > > > > > > > > > > This doesn't really need to be in a function of its own. Please put > > > > > it in .probe(). Also check for the return value and present the user > > > > > with an error message if it fails. > > > > > > > > I think this need to be, in case of !CONFIG_OF. > > > > Can you please explain more in details? > > > > > > Then how to you obtain the shared register map you created? > > > > regmap is stored in driver data in MFD. > > > > i2c_set_clientdata(client, regmap); > > > > The child drivers obain the regmap from the parent. > > > > struct regmap *regmap = dev_get_drvdata(dev->parent); > > Ah yes, of course you do. Silly of me to miss this. > > I also just noticed that you're also manually populating the > chlidren's platform data. It's easier if you do this from the child > device drivers: > > const struct sky81452_platform_data ppdata = dev_get_platdata(dev->parent); > const struct sky81452_bl_platform_data = pdata = ppdata->bl_pdata; I think it could be a good way for this. Thank you. > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* [PATCH v2 0/7] Adding Skyworks SKY81452 device drivers 2014-08-08 9:08 ` Gyungoh Yoo @ 2014-08-28 10:38 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:38 UTC (permalink / raw) To: linux-kernel-u79uwXL29TY76Z2rM5mHXA Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. v2: Split the patches for each sub-system. Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Gyungoh Yoo (7): Adding Skyworks SKY81452 MFD driver Adding Skyworks SKY81452 regulator driver Adding Skyworks SKY81452 backlight driver Adding SKY81452 MFD device tree bindings document Adding SKY81452 regulator device tree bindings document Adding SKY81452 backlight device tree bindings document Adding SKY81452 backlight document Documentation/backlight/sky81452-backlight.txt | 26 ++ .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++ .../bindings/regulator/sky81452-regulator.txt | 18 ++ .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++++++ drivers/regulator/Kconfig | 11 + drivers/regulator/Makefile | 1 + drivers/regulator/sky81452-regulator.c | 140 +++++++++ drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ include/linux/sky81452-backlight.h | 47 +++ 17 files changed, 812 insertions(+) create mode 100644 Documentation/backlight/sky81452-backlight.txt create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/regulator/sky81452-regulator.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* [PATCH v2 0/7] Adding Skyworks SKY81452 device drivers @ 2014-08-28 10:38 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:38 UTC (permalink / raw) To: linux-kernel; +Cc: devicetree, Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. v2: Split the patches for each sub-system. Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Gyungoh Yoo (7): Adding Skyworks SKY81452 MFD driver Adding Skyworks SKY81452 regulator driver Adding Skyworks SKY81452 backlight driver Adding SKY81452 MFD device tree bindings document Adding SKY81452 regulator device tree bindings document Adding SKY81452 backlight device tree bindings document Adding SKY81452 backlight document Documentation/backlight/sky81452-backlight.txt | 26 ++ .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++ .../bindings/regulator/sky81452-regulator.txt | 18 ++ .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++++++ drivers/regulator/Kconfig | 11 + drivers/regulator/Makefile | 1 + drivers/regulator/sky81452-regulator.c | 140 +++++++++ drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ include/linux/sky81452-backlight.h | 47 +++ 17 files changed, 812 insertions(+) create mode 100644 Documentation/backlight/sky81452-backlight.txt create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/regulator/sky81452-regulator.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/sky81452-backlight.h -- 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
* [PATCH v2 4/7] Adding SKY81452 MFD device tree bindings document 2014-08-28 10:38 ` Gyungoh Yoo (?) @ 2014-08-28 10:56 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:56 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak Cc: jason, linux, broonie, arno, peterhuewe, andrew, jgunthorpe, hs, mfuzzey, jack.yoo, florian.vaussard, heiko.stuebner, thierry.reding, silvio.fricke, devicetree, linux-kernel v2: Added 'reg' attribute for I2C address in device tree documents --- .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++++++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 3 files changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 6af570e..ff77879 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -78,6 +78,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..d61904a --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,32 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" +- reg : I2C slave address + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2c { + compatible = "skyworks,sky81452"; + reg = <0x2c>; + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; + + regulator { + compatible = "skyworks,sky81452-regulator"; + regulator-name = "touch_en"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index ac7269f..c755978 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -125,6 +125,7 @@ silabs Silicon Laboratories simtek sii Seiko Instruments, Inc. sirf SiRF Technology, Inc. +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1409222307-23225-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* [PATCH v2 1/7] Adding Skyworks SKY81452 MFD driver 2014-08-28 10:38 ` Gyungoh Yoo @ 2014-08-28 10:43 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:43 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, Gyungoh Yoo v2: Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 153 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..c0ca812 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,108 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize I2C:%d", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + cells[0].name = "sky81452-bl"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (IS_ERR_VALUE(ret)) + dev_err(dev, "failed to add child device:%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 1/7] Adding Skyworks SKY81452 MFD driver @ 2014-08-28 10:43 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:43 UTC (permalink / raw) To: sameo, lee.jones Cc: devicetree, grant.likely, robh+dt, linux-kernel, Gyungoh Yoo v2: Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 153 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..c0ca812 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,108 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize I2C:%d", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + cells[0].name = "sky81452-bl"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (IS_ERR_VALUE(ret)) + dev_err(dev, "failed to add child device:%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1409222631-23293-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* [PATCH v2.1 1/7] Adding Skyworks SKY81452 MFD driver 2014-08-28 10:43 ` Gyungoh Yoo @ 2014-08-29 2:03 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-29 2:03 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, Gyungoh Yoo v2.1: Clear mfd_cells to zero before setting. Added of_compatible into mfd_cells --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 156 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..e91b928 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,111 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize I2C:%d", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-bl"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (IS_ERR_VALUE(ret)) + dev_err(dev, "failed to add child device:%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2.1 1/7] Adding Skyworks SKY81452 MFD driver @ 2014-08-29 2:03 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-29 2:03 UTC (permalink / raw) To: sameo, lee.jones Cc: devicetree, grant.likely, robh+dt, linux-kernel, Gyungoh Yoo v2.1: Clear mfd_cells to zero before setting. Added of_compatible into mfd_cells --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 156 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..e91b928 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,111 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize I2C:%d", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-bl"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (IS_ERR_VALUE(ret)) + dev_err(dev, "failed to add child device:%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [PATCH v2.1 1/7] Adding Skyworks SKY81452 MFD driver 2014-08-29 2:03 ` Gyungoh Yoo (?) @ 2014-09-04 9:28 ` Lee Jones 2014-09-05 4:24 ` Gyungoh Yoo -1 siblings, 1 reply; 163+ messages in thread From: Lee Jones @ 2014-09-04 9:28 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, devicetree, grant.likely, robh+dt, linux-kernel, Gyungoh Yoo You need a nice commit log here. > v2.1: > Clear mfd_cells to zero before setting. > Added of_compatible into mfd_cells The changelog should be below the '---' so it doesn't appear in the commit log. > --- > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 156 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..6962b4e 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..6c2f317 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..e91b928 > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,111 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct mfd_cell cells[2]; > + struct regmap *regmap; > + int ret; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(regmap)) { > + dev_err(dev, "failed to initialize I2C:%d", PTR_ERR(regmap)); Put a space before %d, or else it looks like a dodgy I2C address. > + return PTR_ERR(regmap); > + } > + > + i2c_set_clientdata(client, regmap); > + > + memset(cells, 0, sizeof(cells)); > + cells[0].name = "sky81452-bl"; > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > + cells[0].platform_data = pdata->bl_pdata; > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > + cells[1].name = "sky81452-regulator"; > + cells[1].of_compatible = "skyworks,sky81452-regulator"; > + cells[1].platform_data = pdata->regulator_init_data; > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > + > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > + if (IS_ERR_VALUE(ret)) Just use if (ret). > + dev_err(dev, "failed to add child device:%d", ret); s/device/devices > + > + return ret; > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452" }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); > +MODULE_VERSION("1.1"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..142f762 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/sky81452-backlight.h> > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* [PATCH v2.2 1/7] regulator: sky81452: Adding Skyworks SKY81452 MFD driver 2014-09-04 9:28 ` Lee Jones @ 2014-09-05 4:24 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-09-05 4:24 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, Gyungoh Yoo This patch adds SKY81452 MFD driver. SKY81452 has 2 functions : backlight LED driver and boost converter. The MFD driver registers I2C regmap and registers the child drivers. Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 156 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..3455ac7 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,111 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize I2C: %d", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-bl"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices: %d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2.2 1/7] regulator: sky81452: Adding Skyworks SKY81452 MFD driver @ 2014-09-05 4:24 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-09-05 4:24 UTC (permalink / raw) To: sameo, lee.jones Cc: devicetree, grant.likely, robh+dt, linux-kernel, Gyungoh Yoo This patch adds SKY81452 MFD driver. SKY81452 has 2 functions : backlight LED driver and boost converter. The MFD driver registers I2C regmap and registers the child drivers. Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 156 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..3455ac7 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,111 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize I2C: %d", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-bl"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices: %d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 2/7] Adding Skyworks SKY81452 regulator driver 2014-08-28 10:38 ` Gyungoh Yoo @ 2014-08-28 10:46 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:46 UTC (permalink / raw) To: lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A Cc: grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, Gyungoh Yoo v2: Added 'compatible' attribute in the driver Added message for exception or errors. --- drivers/regulator/Kconfig | 11 +++ drivers/regulator/Makefile | 1 + drivers/regulator/sky81452-regulator.c | 140 +++++++++++++++++++++++++++++++++ 3 files changed, 152 insertions(+) create mode 100644 drivers/regulator/sky81452-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289..2b05964 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -483,6 +483,17 @@ config REGULATOR_S5M8767 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and supports DVS mode with 8bits of output voltage control. +config REGULATOR_SKY81452 + tristate "Skyworks Solutions SKY81452 voltage regulator" + depends on MFD_SKY81452 + help + This driver supports Skyworks SKY81452 voltage output regulator + via I2C bus. SKY81452 has one voltage linear regulator can be + programmed from 4.5V to 20V. + + This driver can also be built as a module. If so, the module + will be called sky81452-regulator. + config REGULATOR_ST_PWM tristate "STMicroelectronics PWM voltage regulator" depends on ARCH_STI diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa..d8206ec 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o +obj-$(CONFIG_REGULATOR_SKY81452) += sky81452-regulator.o obj-$(CONFIG_REGULATOR_ST_PWM) += st-pwm.o obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c new file mode 100644 index 0000000..b9c54c6 --- /dev/null +++ b/drivers/regulator/sky81452-regulator.c @@ -0,0 +1,140 @@ +/* + * sky81452-regulator.c SKY81452 regulator driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/of_regulator.h> + +/* registers */ +#define SKY81452_REG1 0x01 +#define SKY81452_REG3 0x03 + +/* bit mask */ +#define SKY81452_LEN 0x40 +#define SKY81452_LOUT 0x1F + +static struct regulator_ops sky81452_reg_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_linear_range sky81452_reg_ranges[] = { + REGULATOR_LINEAR_RANGE(4500000, 0, 14, 250000), + REGULATOR_LINEAR_RANGE(9000000, 15, 31, 1000000), +}; + +static const struct regulator_desc sky81452_reg = { + .name = "LOUT", + .ops = &sky81452_reg_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .n_voltages = SKY81452_LOUT + 1, + .linear_ranges = sky81452_reg_ranges, + .n_linear_ranges = ARRAY_SIZE(sky81452_reg_ranges), + .vsel_reg = SKY81452_REG3, + .vsel_mask = SKY81452_LOUT, + .enable_reg = SKY81452_REG1, + .enable_mask = SKY81452_LEN, +}; + +#ifdef CONFIG_OF +static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) +{ + struct regulator_init_data *init_data; + struct device_node *np = of_node_get(dev->of_node); + + if (!np) { + dev_err(dev, "regulator node not found"); + return ERR_PTR(-ENODATA); + } + + init_data = of_get_regulator_init_data(dev, np); + + of_node_put(np); + return init_data; +} +#else +static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_reg_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct regulator_init_data *init_data = dev_get_platdata(dev); + struct regulator_config config = { }; + struct regulator_dev *rdev; + + if (!init_data) { + init_data = sky81452_reg_parse_dt(dev); + if (IS_ERR(init_data)) + return PTR_ERR(init_data); + } + + config.dev = dev; + config.init_data = init_data; + config.of_node = dev->of_node; + config.regmap = dev_get_drvdata(dev->parent); + + rdev = devm_regulator_register(dev, &sky81452_reg, &config); + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register regulator:%d", PTR_ERR(rdev)); + return PTR_ERR(rdev); + } + + platform_set_drvdata(pdev, rdev); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_reg_of_match[] = { + { .compatible = "skyworks,sky81452-regulator", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_reg_of_match); +#endif + +static struct platform_driver sky81452_reg_driver = { + .driver = { + .name = "sky81452-regulator", + .of_match_table = of_match_ptr(sky81452_reg_of_match), + }, + .probe = sky81452_reg_probe, +}; + +module_platform_driver(sky81452_reg_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 2/7] Adding Skyworks SKY81452 regulator driver @ 2014-08-28 10:46 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:46 UTC (permalink / raw) To: lgirdwood, broonie Cc: grant.likely, robh+dt, linux-kernel, devicetree, Gyungoh Yoo v2: Added 'compatible' attribute in the driver Added message for exception or errors. --- drivers/regulator/Kconfig | 11 +++ drivers/regulator/Makefile | 1 + drivers/regulator/sky81452-regulator.c | 140 +++++++++++++++++++++++++++++++++ 3 files changed, 152 insertions(+) create mode 100644 drivers/regulator/sky81452-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289..2b05964 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -483,6 +483,17 @@ config REGULATOR_S5M8767 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and supports DVS mode with 8bits of output voltage control. +config REGULATOR_SKY81452 + tristate "Skyworks Solutions SKY81452 voltage regulator" + depends on MFD_SKY81452 + help + This driver supports Skyworks SKY81452 voltage output regulator + via I2C bus. SKY81452 has one voltage linear regulator can be + programmed from 4.5V to 20V. + + This driver can also be built as a module. If so, the module + will be called sky81452-regulator. + config REGULATOR_ST_PWM tristate "STMicroelectronics PWM voltage regulator" depends on ARCH_STI diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa..d8206ec 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o +obj-$(CONFIG_REGULATOR_SKY81452) += sky81452-regulator.o obj-$(CONFIG_REGULATOR_ST_PWM) += st-pwm.o obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c new file mode 100644 index 0000000..b9c54c6 --- /dev/null +++ b/drivers/regulator/sky81452-regulator.c @@ -0,0 +1,140 @@ +/* + * sky81452-regulator.c SKY81452 regulator driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/of_regulator.h> + +/* registers */ +#define SKY81452_REG1 0x01 +#define SKY81452_REG3 0x03 + +/* bit mask */ +#define SKY81452_LEN 0x40 +#define SKY81452_LOUT 0x1F + +static struct regulator_ops sky81452_reg_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_linear_range sky81452_reg_ranges[] = { + REGULATOR_LINEAR_RANGE(4500000, 0, 14, 250000), + REGULATOR_LINEAR_RANGE(9000000, 15, 31, 1000000), +}; + +static const struct regulator_desc sky81452_reg = { + .name = "LOUT", + .ops = &sky81452_reg_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .n_voltages = SKY81452_LOUT + 1, + .linear_ranges = sky81452_reg_ranges, + .n_linear_ranges = ARRAY_SIZE(sky81452_reg_ranges), + .vsel_reg = SKY81452_REG3, + .vsel_mask = SKY81452_LOUT, + .enable_reg = SKY81452_REG1, + .enable_mask = SKY81452_LEN, +}; + +#ifdef CONFIG_OF +static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) +{ + struct regulator_init_data *init_data; + struct device_node *np = of_node_get(dev->of_node); + + if (!np) { + dev_err(dev, "regulator node not found"); + return ERR_PTR(-ENODATA); + } + + init_data = of_get_regulator_init_data(dev, np); + + of_node_put(np); + return init_data; +} +#else +static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_reg_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct regulator_init_data *init_data = dev_get_platdata(dev); + struct regulator_config config = { }; + struct regulator_dev *rdev; + + if (!init_data) { + init_data = sky81452_reg_parse_dt(dev); + if (IS_ERR(init_data)) + return PTR_ERR(init_data); + } + + config.dev = dev; + config.init_data = init_data; + config.of_node = dev->of_node; + config.regmap = dev_get_drvdata(dev->parent); + + rdev = devm_regulator_register(dev, &sky81452_reg, &config); + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register regulator:%d", PTR_ERR(rdev)); + return PTR_ERR(rdev); + } + + platform_set_drvdata(pdev, rdev); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_reg_of_match[] = { + { .compatible = "skyworks,sky81452-regulator", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_reg_of_match); +#endif + +static struct platform_driver sky81452_reg_driver = { + .driver = { + .name = "sky81452-regulator", + .of_match_table = of_match_ptr(sky81452_reg_of_match), + }, + .probe = sky81452_reg_probe, +}; + +module_platform_driver(sky81452_reg_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [PATCH v2 2/7] Adding Skyworks SKY81452 regulator driver 2014-08-28 10:46 ` Gyungoh Yoo (?) @ 2014-08-28 11:02 ` Mark Brown [not found] ` <20140828110254.GN17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> -1 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-08-28 11:02 UTC (permalink / raw) To: Gyungoh Yoo Cc: lgirdwood, grant.likely, robh+dt, linux-kernel, devicetree, Gyungoh Yoo [-- Attachment #1: Type: text/plain, Size: 382 bytes --] On Thu, Aug 28, 2014 at 07:46:37PM +0900, Gyungoh Yoo wrote: > v2: > Added 'compatible' attribute in the driver > Added message for exception or errors. This driver has already been applied, please send any changes as incremental patches against current code. I would *not* expect to see a compatible being defined for a MFD function device though unless it's genuinely reusable. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 819 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20140828110254.GN17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [PATCH v2 2/7] Adding Skyworks SKY81452 regulator driver 2014-08-28 11:02 ` Mark Brown @ 2014-08-29 2:21 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-29 2:21 UTC (permalink / raw) To: Mark Brown Cc: lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, Gyungoh Yoo, lee.jones-QSEj5FYQhm4dnm+yROfE0A On Thu, Aug 28, 2014 at 12:02:54PM +0100, Mark Brown wrote: > On Thu, Aug 28, 2014 at 07:46:37PM +0900, Gyungoh Yoo wrote: > > v2: > > Added 'compatible' attribute in the driver > > Added message for exception or errors. > > This driver has already been applied, please send any changes as > incremental patches against current code. I would *not* expect to see > a compatible being defined for a MFD function device though unless it's > genuinely reusable. I am really sorry about confusing. I will resumit this regulator driver as the incremental patches. BTW, as Lee Jones-MFD supporter mentioned, MFD core provides infrastructure for child drivers using compatible. https://lkml.org/lkml/2014/8/27/132 I want your opinion. Thank you. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH v2 2/7] Adding Skyworks SKY81452 regulator driver @ 2014-08-29 2:21 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-29 2:21 UTC (permalink / raw) To: Mark Brown Cc: lgirdwood, grant.likely, robh+dt, linux-kernel, devicetree, Gyungoh Yoo, lee.jones On Thu, Aug 28, 2014 at 12:02:54PM +0100, Mark Brown wrote: > On Thu, Aug 28, 2014 at 07:46:37PM +0900, Gyungoh Yoo wrote: > > v2: > > Added 'compatible' attribute in the driver > > Added message for exception or errors. > > This driver has already been applied, please send any changes as > incremental patches against current code. I would *not* expect to see > a compatible being defined for a MFD function device though unless it's > genuinely reusable. I am really sorry about confusing. I will resumit this regulator driver as the incremental patches. BTW, as Lee Jones-MFD supporter mentioned, MFD core provides infrastructure for child drivers using compatible. https://lkml.org/lkml/2014/8/27/132 I want your opinion. Thank you. ^ permalink raw reply [flat|nested] 163+ messages in thread
* [PATCH v2 3/7] Adding Skyworks SKY81452 backlight driver [not found] ` <1409222307-23225-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 2014-08-28 10:43 ` Gyungoh Yoo @ 2014-08-28 10:49 ` Gyungoh Yoo 2014-08-28 10:49 ` Gyungoh Yoo ` (3 subsequent siblings) 5 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:49 UTC (permalink / raw) To: jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, linux-fbdev-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA v2: Added 'compatible' attribute in child drivers Added messages for exception or errors. --- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ include/linux/sky81452-backlight.h | 47 ++++ 4 files changed, 405 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..d292026 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,347 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/backlight.h> +#include <linux/sky81452-backlight.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else + strcpy(buf, "none\n"); + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit = 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO:%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize device:%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register backlight:%d", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute:%d", ret); + goto err; + } + + return ret; +err: + backlight_device_unregister(bd); + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/sky81452-backlight.h b/include/linux/sky81452-backlight.h new file mode 100644 index 0000000..b3635f9 --- /dev/null +++ b/include/linux/sky81452-backlight.h @@ -0,0 +1,47 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_BACKLIGHT_H +#define _SKY81452_BACKLIGHT_H + +/** + * struct sky81452_platform_data + * @name: backlight driver name. + If it is not defined, default name is lcd-backlight. + * @gpio_enable:GPIO number which control EN pin + * @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6. + * @ignore_pwm: true if DPWMI should be ignored. + * @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode. + * @phase_shift:true is phase shift mode. + * @short_detecion_threshold: It should be one of 4, 5, 6 and 7V. + * @boost_current_limit: It should be one of 2300, 2750mA. + */ +struct sky81452_bl_platform_data { + const char *name; + int gpio_enable; + unsigned int enable; + bool ignore_pwm; + bool dpwm_mode; + bool phase_shift; + unsigned int short_detection_threshold; + unsigned int boost_current_limit; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 3/7] Adding Skyworks SKY81452 backlight driver @ 2014-08-28 10:49 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:49 UTC (permalink / raw) To: jg1.han, cooloney, lee.jones Cc: grant.likely, robh+dt, jack.yoo, linux-kernel, linux-fbdev, devicetree v2: Added 'compatible' attribute in child drivers Added messages for exception or errors. --- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ include/linux/sky81452-backlight.h | 47 ++++ 4 files changed, 405 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..d292026 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,347 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/backlight.h> +#include <linux/sky81452-backlight.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else + strcpy(buf, "none\n"); + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO:%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize device:%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register backlight:%d", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute:%d", ret); + goto err; + } + + return ret; +err: + backlight_device_unregister(bd); + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/sky81452-backlight.h b/include/linux/sky81452-backlight.h new file mode 100644 index 0000000..b3635f9 --- /dev/null +++ b/include/linux/sky81452-backlight.h @@ -0,0 +1,47 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_BACKLIGHT_H +#define _SKY81452_BACKLIGHT_H + +/** + * struct sky81452_platform_data + * @name: backlight driver name. + If it is not defined, default name is lcd-backlight. + * @gpio_enable:GPIO number which control EN pin + * @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6. + * @ignore_pwm: true if DPWMI should be ignored. + * @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode. + * @phase_shift:true is phase shift mode. + * @short_detecion_threshold: It should be one of 4, 5, 6 and 7V. + * @boost_current_limit: It should be one of 2300, 2750mA. + */ +struct sky81452_bl_platform_data { + const char *name; + int gpio_enable; + unsigned int enable; + bool ignore_pwm; + bool dpwm_mode; + bool phase_shift; + unsigned int short_detection_threshold; + unsigned int boost_current_limit; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 3/7] Adding Skyworks SKY81452 backlight driver @ 2014-08-28 10:49 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:49 UTC (permalink / raw) To: jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, linux-fbdev-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA v2: Added 'compatible' attribute in child drivers Added messages for exception or errors. --- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ include/linux/sky81452-backlight.h | 47 ++++ 4 files changed, 405 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..d292026 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,347 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/backlight.h> +#include <linux/sky81452-backlight.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else + strcpy(buf, "none\n"); + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO:%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize device:%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register backlight:%d", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute:%d", ret); + goto err; + } + + return ret; +err: + backlight_device_unregister(bd); + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); diff --git a/include/linux/sky81452-backlight.h b/include/linux/sky81452-backlight.h new file mode 100644 index 0000000..b3635f9 --- /dev/null +++ b/include/linux/sky81452-backlight.h @@ -0,0 +1,47 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_BACKLIGHT_H +#define _SKY81452_BACKLIGHT_H + +/** + * struct sky81452_platform_data + * @name: backlight driver name. + If it is not defined, default name is lcd-backlight. + * @gpio_enable:GPIO number which control EN pin + * @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6. + * @ignore_pwm: true if DPWMI should be ignored. + * @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode. + * @phase_shift:true is phase shift mode. + * @short_detecion_threshold: It should be one of 4, 5, 6 and 7V. + * @boost_current_limit: It should be one of 2300, 2750mA. + */ +struct sky81452_bl_platform_data { + const char *name; + int gpio_enable; + unsigned int enable; + bool ignore_pwm; + bool dpwm_mode; + bool phase_shift; + unsigned int short_detection_threshold; + unsigned int boost_current_limit; +}; + +#endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 5/7] Adding SKY81452 regulator device tree bindings document 2014-08-28 10:38 ` Gyungoh Yoo @ 2014-08-28 10:58 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:58 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA v2: Added 'compatible' attribute in child drivers --- .../bindings/regulator/sky81452-regulator.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt new file mode 100644 index 0000000..7b9ff18 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -0,0 +1,18 @@ +SKY81452 voltage regulator + +Required properties: +- compatible : Must be "skyworks,sky81452-regulator" +- any required generic properties defined in regulator.txt + +Optional properties: +- any available generic properties defined in regulator.txt + +Example: + + regulator { + compatible = "skyworks,sky81452-regulator"; + /* generic regulator properties */ + regulator-name = "touch_en"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 5/7] Adding SKY81452 regulator device tree bindings document @ 2014-08-28 10:58 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 10:58 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak Cc: jack.yoo, devicetree, linux-kernel v2: Added 'compatible' attribute in child drivers --- .../bindings/regulator/sky81452-regulator.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt new file mode 100644 index 0000000..7b9ff18 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -0,0 +1,18 @@ +SKY81452 voltage regulator + +Required properties: +- compatible : Must be "skyworks,sky81452-regulator" +- any required generic properties defined in regulator.txt + +Optional properties: +- any available generic properties defined in regulator.txt + +Example: + + regulator { + compatible = "skyworks,sky81452-regulator"; + /* generic regulator properties */ + regulator-name = "touch_en"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1409223518-23566-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [PATCH v2 5/7] Adding SKY81452 regulator device tree bindings document 2014-08-28 10:58 ` Gyungoh Yoo @ 2014-09-01 2:46 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-09-01 2:46 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA Please ingnore 'only' this patch. When sky81452-regulator driver was applied before, The previous version of this document 'sky81452-regulator.txt' was applied. I will resubmit the changes as incremental patches against current code of sky81452-regulator.txt. I am sorry for confusiong. Thank you. On Thu, Aug 28, 2014 at 07:58:38PM +0900, Gyungoh Yoo wrote: > v2: > Added 'compatible' attribute in child drivers > > --- > .../bindings/regulator/sky81452-regulator.txt | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt > > diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt > new file mode 100644 > index 0000000..7b9ff18 > --- /dev/null > +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt > @@ -0,0 +1,18 @@ > +SKY81452 voltage regulator > + > +Required properties: > +- compatible : Must be "skyworks,sky81452-regulator" > +- any required generic properties defined in regulator.txt > + > +Optional properties: > +- any available generic properties defined in regulator.txt > + > +Example: > + > + regulator { > + compatible = "skyworks,sky81452-regulator"; > + /* generic regulator properties */ > + regulator-name = "touch_en"; > + regulator-min-microvolt = <4500000>; > + regulator-max-microvolt = <8000000>; > + }; > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [PATCH v2 5/7] Adding SKY81452 regulator device tree bindings document @ 2014-09-01 2:46 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-09-01 2:46 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak Cc: jack.yoo, devicetree, linux-kernel Please ingnore 'only' this patch. When sky81452-regulator driver was applied before, The previous version of this document 'sky81452-regulator.txt' was applied. I will resubmit the changes as incremental patches against current code of sky81452-regulator.txt. I am sorry for confusiong. Thank you. On Thu, Aug 28, 2014 at 07:58:38PM +0900, Gyungoh Yoo wrote: > v2: > Added 'compatible' attribute in child drivers > > --- > .../bindings/regulator/sky81452-regulator.txt | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt > > diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt > new file mode 100644 > index 0000000..7b9ff18 > --- /dev/null > +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt > @@ -0,0 +1,18 @@ > +SKY81452 voltage regulator > + > +Required properties: > +- compatible : Must be "skyworks,sky81452-regulator" > +- any required generic properties defined in regulator.txt > + > +Optional properties: > +- any available generic properties defined in regulator.txt > + > +Example: > + > + regulator { > + compatible = "skyworks,sky81452-regulator"; > + /* generic regulator properties */ > + regulator-name = "touch_en"; > + regulator-min-microvolt = <4500000>; > + regulator-max-microvolt = <8000000>; > + }; > -- > 1.9.1 > ^ permalink raw reply [flat|nested] 163+ messages in thread
* [PATCH v2 6/7] Adding SKY81452 backlight device tree bindings document 2014-08-28 10:38 ` Gyungoh Yoo @ 2014-08-28 11:00 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 11:00 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA v2: Added 'compatible' attribute in child drivers --- .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 6/7] Adding SKY81452 backlight device tree bindings document @ 2014-08-28 11:00 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 11:00 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak Cc: jack.yoo, devicetree, linux-kernel v2: Added 'compatible' attribute in child drivers --- .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 0/8] Adding Skyworks SKY81452 device drivers 2014-08-28 10:38 ` Gyungoh Yoo @ 2014-10-07 4:55 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 4:55 UTC (permalink / raw) To: linux-kernel-u79uwXL29TY76Z2rM5mHXA Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. v3: Cleaned-up DBG messages. Cleaned-up DT. v2: Split the patches for each sub-system. Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Gyungoh Yoo (8): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list regulator: sky81452: Add compatible string for device binding devicetree: regulator: sky81452: Add compatible string for device binding .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++ .../bindings/regulator/sky81452-regulator.txt | 2 + .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++ drivers/regulator/sky81452-regulator.c | 22 +- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ 13 files changed, 590 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 0/8] Adding Skyworks SKY81452 device drivers @ 2014-10-07 4:55 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 4:55 UTC (permalink / raw) To: linux-kernel; +Cc: devicetree, jack.yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. v3: Cleaned-up DBG messages. Cleaned-up DT. v2: Split the patches for each sub-system. Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Gyungoh Yoo (8): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list regulator: sky81452: Add compatible string for device binding devicetree: regulator: sky81452: Add compatible string for device binding .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++ .../bindings/regulator/sky81452-regulator.txt | 2 + .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++ drivers/regulator/sky81452-regulator.c | 22 +- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ 13 files changed, 590 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h -- 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-07 4:55 ` Gyungoh Yoo (?) @ 2014-10-07 4:58 ` Gyungoh Yoo 2014-10-07 8:12 ` Lee Jones -1 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 4:58 UTC (permalink / raw) To: sameo, lee.jones Cc: grant.likely, robh+dt, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 156 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..9130112 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,111 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-backlight"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices. err=%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-07 4:58 ` [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver Gyungoh Yoo @ 2014-10-07 8:12 ` Lee Jones 2014-10-07 8:23 ` Gyungoh Yoo 0 siblings, 1 reply; 163+ messages in thread From: Lee Jones @ 2014-10-07 8:12 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, grant.likely, robh+dt, linux-kernel, devicetree, jack.yoo You say that this is v3, but there is no change log (usually placed between the '---' and the diffstat). Also you have 8 patches in this set with no 0/8 patch explaining what you're trying to achieve. For this size patch you also require a patch commit log. What does this driver provide? How does it provide it? Once you've addressed these issues, I'll review your patches. > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 156 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..6962b4e 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..6c2f317 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > obj-$(CONFIG_MFD_AS3722) += as3722.o > obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..9130112 > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,111 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct mfd_cell cells[2]; > + struct regmap *regmap; > + int ret; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(regmap)) { > + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); > + return PTR_ERR(regmap); > + } > + > + i2c_set_clientdata(client, regmap); > + > + memset(cells, 0, sizeof(cells)); > + cells[0].name = "sky81452-backlight"; > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > + cells[0].platform_data = pdata->bl_pdata; > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > + cells[1].name = "sky81452-regulator"; > + cells[1].of_compatible = "skyworks,sky81452-regulator"; > + cells[1].platform_data = pdata->regulator_init_data; > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > + > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > + if (ret) > + dev_err(dev, "failed to add child devices. err=%d", ret); > + > + return ret; > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452" }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); > +MODULE_VERSION("1.2"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..142f762 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/sky81452-backlight.h> > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-07 8:12 ` Lee Jones @ 2014-10-07 8:23 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 8:23 UTC (permalink / raw) To: Lee Jones Cc: sameo-VuQAYsv1563Yd54FQh9/CA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng On Tue, Oct 07, 2014 at 09:12:00AM +0100, Lee Jones wrote: > You say that this is v3, but there is no change log (usually placed > between the '---' and the diffstat). Also you have 8 patches in this > set with no 0/8 patch explaining what you're trying to achieve. For > this size patch you also require a patch commit log. What does this > driver provide? How does it provide it? Once you've addressed these > issues, I'll review your patches. I sent 0/8 patch, and it has the change log and what this patch is trying to do. Can I ask you to review the patches? Thank you. > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > --- > > drivers/mfd/Kconfig | 12 +++++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 +++++++++++++ > > 4 files changed, 156 insertions(+) > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index de5abf2..6962b4e 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config MFD_SKY81452 > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index f001487..6c2f317 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > > obj-$(CONFIG_MFD_AS3722) += as3722.o > > obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > > new file mode 100644 > > index 0000000..9130112 > > --- /dev/null > > +++ b/drivers/mfd/sky81452.c > > @@ -0,0 +1,111 @@ > > +/* > > + * sky81452.c SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/err.h> > > +#include <linux/slab.h> > > +#include <linux/i2c.h> > > +#include <linux/regmap.h> > > +#include <linux/mfd/core.h> > > +#include <linux/mfd/sky81452.h> > > + > > +static const struct regmap_config sky81452_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int sky81452_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > +{ > > + struct device *dev = &client->dev; > > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > > + struct mfd_cell cells[2]; > > + struct regmap *regmap; > > + int ret; > > + > > + if (!pdata) { > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) > > + return -ENOMEM; > > + } > > + > > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > > + if (IS_ERR(regmap)) { > > + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); > > + return PTR_ERR(regmap); > > + } > > + > > + i2c_set_clientdata(client, regmap); > > + > > + memset(cells, 0, sizeof(cells)); > > + cells[0].name = "sky81452-backlight"; > > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > > + cells[0].platform_data = pdata->bl_pdata; > > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > > + cells[1].name = "sky81452-regulator"; > > + cells[1].of_compatible = "skyworks,sky81452-regulator"; > > + cells[1].platform_data = pdata->regulator_init_data; > > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > > + > > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > > + if (ret) > > + dev_err(dev, "failed to add child devices. err=%d", ret); > > + > > + return ret; > > +} > > + > > +static int sky81452_remove(struct i2c_client *client) > > +{ > > + mfd_remove_devices(&client->dev); > > + return 0; > > +} > > + > > +static const struct i2c_device_id sky81452_ids[] = { > > + { "sky81452" }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > + > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > > +MODULE_LICENSE("GPL"); > > +MODULE_VERSION("1.2"); > > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > > new file mode 100644 > > index 0000000..142f762 > > --- /dev/null > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include <linux/sky81452-backlight.h> > > +#include <linux/regulator/machine.h> > > + > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-10-07 8:23 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 8:23 UTC (permalink / raw) To: Lee Jones Cc: sameo, grant.likely, robh+dt, linux-kernel, devicetree, jack.yoo On Tue, Oct 07, 2014 at 09:12:00AM +0100, Lee Jones wrote: > You say that this is v3, but there is no change log (usually placed > between the '---' and the diffstat). Also you have 8 patches in this > set with no 0/8 patch explaining what you're trying to achieve. For > this size patch you also require a patch commit log. What does this > driver provide? How does it provide it? Once you've addressed these > issues, I'll review your patches. I sent 0/8 patch, and it has the change log and what this patch is trying to do. Can I ask you to review the patches? Thank you. > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > drivers/mfd/Kconfig | 12 +++++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 +++++++++++++ > > 4 files changed, 156 insertions(+) > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index de5abf2..6962b4e 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -626,6 +626,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config MFD_SKY81452 > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index f001487..6c2f317 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o > > obj-$(CONFIG_MFD_AS3722) += as3722.o > > obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > > new file mode 100644 > > index 0000000..9130112 > > --- /dev/null > > +++ b/drivers/mfd/sky81452.c > > @@ -0,0 +1,111 @@ > > +/* > > + * sky81452.c SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/err.h> > > +#include <linux/slab.h> > > +#include <linux/i2c.h> > > +#include <linux/regmap.h> > > +#include <linux/mfd/core.h> > > +#include <linux/mfd/sky81452.h> > > + > > +static const struct regmap_config sky81452_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int sky81452_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > +{ > > + struct device *dev = &client->dev; > > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > > + struct mfd_cell cells[2]; > > + struct regmap *regmap; > > + int ret; > > + > > + if (!pdata) { > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) > > + return -ENOMEM; > > + } > > + > > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > > + if (IS_ERR(regmap)) { > > + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); > > + return PTR_ERR(regmap); > > + } > > + > > + i2c_set_clientdata(client, regmap); > > + > > + memset(cells, 0, sizeof(cells)); > > + cells[0].name = "sky81452-backlight"; > > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > > + cells[0].platform_data = pdata->bl_pdata; > > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > > + cells[1].name = "sky81452-regulator"; > > + cells[1].of_compatible = "skyworks,sky81452-regulator"; > > + cells[1].platform_data = pdata->regulator_init_data; > > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > > + > > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > > + if (ret) > > + dev_err(dev, "failed to add child devices. err=%d", ret); > > + > > + return ret; > > +} > > + > > +static int sky81452_remove(struct i2c_client *client) > > +{ > > + mfd_remove_devices(&client->dev); > > + return 0; > > +} > > + > > +static const struct i2c_device_id sky81452_ids[] = { > > + { "sky81452" }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > + > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL"); > > +MODULE_VERSION("1.2"); > > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > > new file mode 100644 > > index 0000000..142f762 > > --- /dev/null > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include <linux/sky81452-backlight.h> > > +#include <linux/regulator/machine.h> > > + > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <1412657745-7812-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver [not found] ` <1412657745-7812-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 2014-10-07 5:01 ` Gyungoh Yoo @ 2014-10-07 5:01 ` Gyungoh Yoo 2014-10-07 5:06 ` Gyungoh Yoo ` (4 subsequent siblings) 6 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:01 UTC (permalink / raw) To: jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: plagnioj-sclMFOaUSTBWk0Htik3J/w, tomi.valkeinen-l0cyMroinI0, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, linux-fbdev-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ 3 files changed, 358 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..101399d --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,347 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/backlight.h> +#include <linux/sky81452-backlight.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else + strcpy(buf, "none\n"); + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit = 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO. err=%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize. err=%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute. err=%d", ret); + goto err; + } + + return ret; +err: + backlight_device_unregister(bd); + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver @ 2014-10-07 5:01 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:01 UTC (permalink / raw) To: jg1.han, cooloney, lee.jones Cc: plagnioj, tomi.valkeinen, grant.likely, robh+dt, linux-kernel, linux-fbdev, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ 3 files changed, 358 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..101399d --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,347 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/backlight.h> +#include <linux/sky81452-backlight.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else + strcpy(buf, "none\n"); + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO. err=%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize. err=%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute. err=%d", ret); + goto err; + } + + return ret; +err: + backlight_device_unregister(bd); + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver @ 2014-10-07 5:01 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:01 UTC (permalink / raw) To: jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lee.jones-QSEj5FYQhm4dnm+yROfE0A Cc: plagnioj-sclMFOaUSTBWk0Htik3J/w, tomi.valkeinen-l0cyMroinI0, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, linux-fbdev-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ 3 files changed, 358 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..101399d --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,347 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/backlight.h> +#include <linux/sky81452-backlight.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else + strcpy(buf, "none\n"); + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO. err=%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize. err=%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute. err=%d", ret); + goto err; + } + + return ret; +err: + backlight_device_unregister(bd); + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1412658075-7929-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver [not found] ` <1412658075-7929-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 2014-10-08 1:03 ` Jingoo Han @ 2014-10-08 1:03 ` Jingoo Han 0 siblings, 0 replies; 163+ messages in thread From: Jingoo Han @ 2014-10-08 1:03 UTC (permalink / raw) To: 'Gyungoh Yoo' Cc: 'Bryan Wu', 'Lee Jones', 'Jean-Christophe Plagniol-Villard', 'Tomi Valkeinen', 'Grant Likely', 'Rob Herring', linux-kernel-u79uwXL29TY76Z2rM5mHXA, linux-fbdev-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, 'Gyungoh Yoo ', 'Jingoo Han' On Tuesday, October 07, 2014 2:01 PM, Gyungoh Yoo wrote: > If possible, please add more detailed commit message for this patch. > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > drivers/video/backlight/Kconfig | 10 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ > 3 files changed, 358 insertions(+) > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > index 8d03924..2586fdd 100644 > --- a/drivers/video/backlight/Kconfig > +++ b/drivers/video/backlight/Kconfig > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > If you have a Pandora console, say Y to enable the > backlight driver. > > +config BACKLIGHT_SKY81452 > + tristate "Backlight driver for SKY81452" > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > + help > + If you have a Skyworks SKY81452, say Y to enable the > + backlight driver. > + > + To compile this driver as a module, choose M here: the module will > + be called sky81452-backlight > + > config BACKLIGHT_TPS65217 > tristate "TPS65217 Backlight" > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > index fcd50b73..d67073f 100644 > --- a/drivers/video/backlight/Makefile > +++ b/drivers/video/backlight/Makefile > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452- > backlight.c > new file mode 100644 > index 0000000..101399d > --- /dev/null > +++ b/drivers/video/backlight/sky81452-backlight.c > @@ -0,0 +1,347 @@ > +/* > + * sky81452-backlight.c SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/platform_device.h> > +#include <linux/slab.h> > +#include <linux/of.h> > +#include <linux/err.h> > +#include <linux/gpio.h> > +#include <linux/of_gpio.h> > +#include <linux/regmap.h> > +#include <linux/backlight.h> > +#include <linux/sky81452-backlight.h> Please, re-order these headers alphabetically. It enhances the readability. > + > +/* registers */ > +#define SKY81452_REG0 0x00 > +#define SKY81452_REG1 0x01 > +#define SKY81452_REG2 0x02 > +#define SKY81452_REG4 0x04 > +#define SKY81452_REG5 0x05 > + > +/* bit mask */ > +#define SKY81452_CS 0xFF > +#define SKY81452_EN 0x3F > +#define SKY81452_IGPW 0x20 > +#define SKY81452_PWMMD 0x10 > +#define SKY81452_PHASE 0x08 > +#define SKY81452_ILIM 0x04 > +#define SKY81452_VSHRT 0x03 > +#define SKY81452_OCP 0x80 > +#define SKY81452_OTMP 0x40 > +#define SKY81452_SHRT 0x3F > +#define SKY81452_OPN 0x3F > + > +#define SKY81452_DEFAULT_NAME "lcd-backlight" > +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > + > +#define CTZ(b) __builtin_ctz(b) > + > +static int sky81452_bl_update_status(struct backlight_device *bd) > +{ > + const struct sky81452_bl_platform_data *pdata > + dev_get_platdata(bd->dev.parent); > + const unsigned int brightness = (unsigned int)bd->props.brightness; > + struct regmap *regmap = bl_get_data(bd); > + int ret; > + > + if (brightness > 0) { > + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + pdata->enable << CTZ(SKY81452_EN)); > + } > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > +} > + > +static int sky81452_bl_get_brightness(struct backlight_device *bd) > +{ > + return bd->props.brightness; > +} > + > +static const struct backlight_ops sky81452_bl_ops = { > + .update_status = sky81452_bl_update_status, > + .get_brightness = sky81452_bl_get_brightness, > +}; > + > +static ssize_t sky81452_bl_store_enable(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned long value; > + int ret; > + > + ret = kstrtoul(buf, 16, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + value << CTZ(SKY81452_EN)); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return count; > +} > + > +static ssize_t sky81452_bl_show_open_short(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int reg, value = 0; > + char tmp[3]; > + int i, ret; > + > + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > + ret = regmap_read(regmap, reg, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + if (value & SKY81452_SHRT) { > + *buf = 0; > + for (i = 0; i < 6; i++) { > + if (value & 0x01) { > + sprintf(tmp, "%d ", i + 1); > + strcat(buf, tmp); > + } > + value >>= 1; > + } > + strcat(buf, "\n"); > + } else > + strcpy(buf, "none\n"); Please add braces to 'else' statement. If only one branch of a conditional statement is a single statement. Braces are needed. if () { ... (multi lines) } else { ... } > + > + return strlen(buf); > +} > + > +static ssize_t sky81452_bl_show_fault(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int value = 0; > + int ret; > + > + ret = regmap_read(regmap, SKY81452_REG4, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + *buf = 0; > + > + if (value & SKY81452_OCP) > + strcat(buf, "over-current "); > + > + if (value & SKY81452_OTMP) > + strcat(buf, "over-temperature"); > + > + strcat(buf, "\n"); > + return strlen(buf); > +} > + > +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > + > +static struct attribute *sky81452_bl_attribute[] = { > + &dev_attr_enable.attr, > + &dev_attr_open.attr, > + &dev_attr_short.attr, > + &dev_attr_fault.attr, > + NULL > +}; > + > +static const struct attribute_group sky81452_bl_attr_group = { > + .attrs = sky81452_bl_attribute, > +}; > + > +#ifdef CONFIG_OF > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + struct device_node *np = of_node_get(dev->of_node); > + struct sky81452_bl_platform_data *pdata; > + int ret; > + > + if (!np) { > + dev_err(dev, "backlight node not found"); > + return ERR_PTR(-ENODATA); > + } > + > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) { > + of_node_put(np); > + return ERR_PTR(-ENOMEM); > + } > + > + of_property_read_string(np, "name", &pdata->name); > + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); > + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); > + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); > + > + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); > + if (IS_ERR_VALUE(pdata->gpio_enable)) > + pdata->gpio_enable = -1; > + > + ret = of_property_read_u32(np, "enable", &pdata->enable); > + if (IS_ERR_VALUE(ret)) > + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); > + > + ret = of_property_read_u32(np, "short-detection-threshold", > + &pdata->short_detection_threshold); > + if (IS_ERR_VALUE(ret)) > + pdata->short_detection_threshold = 7; > + > + ret = of_property_read_u32(np, "boost-current-limit", > + &pdata->boost_current_limit); > + if (IS_ERR_VALUE(ret)) > + pdata->boost_current_limit = 2750; > + > + of_node_put(np); > + return pdata; > +} > +#else > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + return ERR_PTR(-EINVAL); > +} > +#endif > + > +static int sky81452_bl_init_device(struct regmap *regmap, > + struct sky81452_bl_platform_data *pdata) > +{ > + unsigned int value; > + > + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; > + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; > + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; > + > + if (pdata->boost_current_limit = 2300) > + value |= SKY81452_ILIM; > + else if (pdata->boost_current_limit != 2720) > + return -EINVAL; > + > + if (pdata->short_detection_threshold < 4 || > + pdata->short_detection_threshold > 7) > + return -EINVAL; > + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); > + > + return regmap_write(regmap, SKY81452_REG2, value); > +} > + > +static int sky81452_bl_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct regmap *regmap = dev_get_drvdata(dev->parent); > + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); > + struct backlight_device *bd; > + struct backlight_properties props; > + const char *name; > + int ret; > + > + if (!pdata) { > + pdata = sky81452_bl_parse_dt(dev); > + if (IS_ERR(pdata)) > + return PTR_ERR(pdata); > + } > + > + if (pdata->gpio_enable >= 0) { > + ret = devm_gpio_request_one(dev, pdata->gpio_enable, > + GPIOF_OUT_INIT_HIGH, "sky81452-en"); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to request GPIO. err=%d", ret); > + return ret; > + } > + } > + > + ret = sky81452_bl_init_device(regmap, pdata); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to initialize. err=%d", ret); > + return ret; > + } > + > + memset(&props, 0, sizeof(props)); > + props.max_brightness = SKY81452_MAX_BRIGHTNESS, > + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; > + bd = devm_backlight_device_register(dev, name, dev, regmap, > + &sky81452_bl_ops, &props); > + if (IS_ERR(bd)) { > + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); > + return PTR_ERR(bd); > + } > + > + platform_set_drvdata(pdev, bd); > + > + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to create attribute. err=%d", ret); > + goto err; > + } > + > + return ret; > +err: > + backlight_device_unregister(bd); This backlight_device_unregister() is NOT necessary. This is because backlight_device_unregister will be called automatically, when devm_backlight_device_register() is used and error returns. > + return ret; > +} > + > +static int sky81452_bl_remove(struct platform_device *pdev) > +{ > + const struct sky81452_bl_platform_data *pdata > + dev_get_platdata(&pdev->dev); > + struct backlight_device *bd = platform_get_drvdata(pdev); > + > + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); > + > + bd->props.power = FB_BLANK_UNBLANK; > + bd->props.brightness = 0; > + backlight_update_status(bd); > + > + if (pdata->gpio_enable >= 0) > + gpio_set_value_cansleep(pdata->gpio_enable, 0); > + > + return 0; > +} > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_bl_of_match[] = { > + { .compatible = "skyworks,sky81452-backlight", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); > +#endif > + > +static struct platform_driver sky81452_bl_driver = { > + .driver = { > + .name = "sky81452-backlight", > + .of_match_table = of_match_ptr(sky81452_bl_of_match), > + }, > + .probe = sky81452_bl_probe, > + .remove = sky81452_bl_remove, > +}; > + > +module_platform_driver(sky81452_bl_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); How about using 'GPL v2'? > +MODULE_VERSION("1.2"); > -- > 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver @ 2014-10-08 1:03 ` Jingoo Han 0 siblings, 0 replies; 163+ messages in thread From: Jingoo Han @ 2014-10-08 1:03 UTC (permalink / raw) To: 'Gyungoh Yoo' Cc: 'Bryan Wu', 'Lee Jones', 'Jean-Christophe Plagniol-Villard', 'Tomi Valkeinen', 'Grant Likely', 'Rob Herring', linux-kernel, linux-fbdev, devicetree, 'Gyungoh Yoo ', 'Jingoo Han' On Tuesday, October 07, 2014 2:01 PM, Gyungoh Yoo wrote: > If possible, please add more detailed commit message for this patch. > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > drivers/video/backlight/Kconfig | 10 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ > 3 files changed, 358 insertions(+) > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > index 8d03924..2586fdd 100644 > --- a/drivers/video/backlight/Kconfig > +++ b/drivers/video/backlight/Kconfig > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > If you have a Pandora console, say Y to enable the > backlight driver. > > +config BACKLIGHT_SKY81452 > + tristate "Backlight driver for SKY81452" > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > + help > + If you have a Skyworks SKY81452, say Y to enable the > + backlight driver. > + > + To compile this driver as a module, choose M here: the module will > + be called sky81452-backlight > + > config BACKLIGHT_TPS65217 > tristate "TPS65217 Backlight" > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > index fcd50b73..d67073f 100644 > --- a/drivers/video/backlight/Makefile > +++ b/drivers/video/backlight/Makefile > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452- > backlight.c > new file mode 100644 > index 0000000..101399d > --- /dev/null > +++ b/drivers/video/backlight/sky81452-backlight.c > @@ -0,0 +1,347 @@ > +/* > + * sky81452-backlight.c SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/platform_device.h> > +#include <linux/slab.h> > +#include <linux/of.h> > +#include <linux/err.h> > +#include <linux/gpio.h> > +#include <linux/of_gpio.h> > +#include <linux/regmap.h> > +#include <linux/backlight.h> > +#include <linux/sky81452-backlight.h> Please, re-order these headers alphabetically. It enhances the readability. > + > +/* registers */ > +#define SKY81452_REG0 0x00 > +#define SKY81452_REG1 0x01 > +#define SKY81452_REG2 0x02 > +#define SKY81452_REG4 0x04 > +#define SKY81452_REG5 0x05 > + > +/* bit mask */ > +#define SKY81452_CS 0xFF > +#define SKY81452_EN 0x3F > +#define SKY81452_IGPW 0x20 > +#define SKY81452_PWMMD 0x10 > +#define SKY81452_PHASE 0x08 > +#define SKY81452_ILIM 0x04 > +#define SKY81452_VSHRT 0x03 > +#define SKY81452_OCP 0x80 > +#define SKY81452_OTMP 0x40 > +#define SKY81452_SHRT 0x3F > +#define SKY81452_OPN 0x3F > + > +#define SKY81452_DEFAULT_NAME "lcd-backlight" > +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > + > +#define CTZ(b) __builtin_ctz(b) > + > +static int sky81452_bl_update_status(struct backlight_device *bd) > +{ > + const struct sky81452_bl_platform_data *pdata = > + dev_get_platdata(bd->dev.parent); > + const unsigned int brightness = (unsigned int)bd->props.brightness; > + struct regmap *regmap = bl_get_data(bd); > + int ret; > + > + if (brightness > 0) { > + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + pdata->enable << CTZ(SKY81452_EN)); > + } > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > +} > + > +static int sky81452_bl_get_brightness(struct backlight_device *bd) > +{ > + return bd->props.brightness; > +} > + > +static const struct backlight_ops sky81452_bl_ops = { > + .update_status = sky81452_bl_update_status, > + .get_brightness = sky81452_bl_get_brightness, > +}; > + > +static ssize_t sky81452_bl_store_enable(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned long value; > + int ret; > + > + ret = kstrtoul(buf, 16, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + value << CTZ(SKY81452_EN)); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return count; > +} > + > +static ssize_t sky81452_bl_show_open_short(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int reg, value = 0; > + char tmp[3]; > + int i, ret; > + > + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > + ret = regmap_read(regmap, reg, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + if (value & SKY81452_SHRT) { > + *buf = 0; > + for (i = 0; i < 6; i++) { > + if (value & 0x01) { > + sprintf(tmp, "%d ", i + 1); > + strcat(buf, tmp); > + } > + value >>= 1; > + } > + strcat(buf, "\n"); > + } else > + strcpy(buf, "none\n"); Please add braces to 'else' statement. If only one branch of a conditional statement is a single statement. Braces are needed. if () { ... (multi lines) } else { ... } > + > + return strlen(buf); > +} > + > +static ssize_t sky81452_bl_show_fault(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int value = 0; > + int ret; > + > + ret = regmap_read(regmap, SKY81452_REG4, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + *buf = 0; > + > + if (value & SKY81452_OCP) > + strcat(buf, "over-current "); > + > + if (value & SKY81452_OTMP) > + strcat(buf, "over-temperature"); > + > + strcat(buf, "\n"); > + return strlen(buf); > +} > + > +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > + > +static struct attribute *sky81452_bl_attribute[] = { > + &dev_attr_enable.attr, > + &dev_attr_open.attr, > + &dev_attr_short.attr, > + &dev_attr_fault.attr, > + NULL > +}; > + > +static const struct attribute_group sky81452_bl_attr_group = { > + .attrs = sky81452_bl_attribute, > +}; > + > +#ifdef CONFIG_OF > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + struct device_node *np = of_node_get(dev->of_node); > + struct sky81452_bl_platform_data *pdata; > + int ret; > + > + if (!np) { > + dev_err(dev, "backlight node not found"); > + return ERR_PTR(-ENODATA); > + } > + > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) { > + of_node_put(np); > + return ERR_PTR(-ENOMEM); > + } > + > + of_property_read_string(np, "name", &pdata->name); > + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); > + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); > + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); > + > + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); > + if (IS_ERR_VALUE(pdata->gpio_enable)) > + pdata->gpio_enable = -1; > + > + ret = of_property_read_u32(np, "enable", &pdata->enable); > + if (IS_ERR_VALUE(ret)) > + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); > + > + ret = of_property_read_u32(np, "short-detection-threshold", > + &pdata->short_detection_threshold); > + if (IS_ERR_VALUE(ret)) > + pdata->short_detection_threshold = 7; > + > + ret = of_property_read_u32(np, "boost-current-limit", > + &pdata->boost_current_limit); > + if (IS_ERR_VALUE(ret)) > + pdata->boost_current_limit = 2750; > + > + of_node_put(np); > + return pdata; > +} > +#else > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + return ERR_PTR(-EINVAL); > +} > +#endif > + > +static int sky81452_bl_init_device(struct regmap *regmap, > + struct sky81452_bl_platform_data *pdata) > +{ > + unsigned int value; > + > + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; > + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; > + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; > + > + if (pdata->boost_current_limit == 2300) > + value |= SKY81452_ILIM; > + else if (pdata->boost_current_limit != 2720) > + return -EINVAL; > + > + if (pdata->short_detection_threshold < 4 || > + pdata->short_detection_threshold > 7) > + return -EINVAL; > + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); > + > + return regmap_write(regmap, SKY81452_REG2, value); > +} > + > +static int sky81452_bl_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct regmap *regmap = dev_get_drvdata(dev->parent); > + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); > + struct backlight_device *bd; > + struct backlight_properties props; > + const char *name; > + int ret; > + > + if (!pdata) { > + pdata = sky81452_bl_parse_dt(dev); > + if (IS_ERR(pdata)) > + return PTR_ERR(pdata); > + } > + > + if (pdata->gpio_enable >= 0) { > + ret = devm_gpio_request_one(dev, pdata->gpio_enable, > + GPIOF_OUT_INIT_HIGH, "sky81452-en"); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to request GPIO. err=%d", ret); > + return ret; > + } > + } > + > + ret = sky81452_bl_init_device(regmap, pdata); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to initialize. err=%d", ret); > + return ret; > + } > + > + memset(&props, 0, sizeof(props)); > + props.max_brightness = SKY81452_MAX_BRIGHTNESS, > + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; > + bd = devm_backlight_device_register(dev, name, dev, regmap, > + &sky81452_bl_ops, &props); > + if (IS_ERR(bd)) { > + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); > + return PTR_ERR(bd); > + } > + > + platform_set_drvdata(pdev, bd); > + > + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to create attribute. err=%d", ret); > + goto err; > + } > + > + return ret; > +err: > + backlight_device_unregister(bd); This backlight_device_unregister() is NOT necessary. This is because backlight_device_unregister will be called automatically, when devm_backlight_device_register() is used and error returns. > + return ret; > +} > + > +static int sky81452_bl_remove(struct platform_device *pdev) > +{ > + const struct sky81452_bl_platform_data *pdata = > + dev_get_platdata(&pdev->dev); > + struct backlight_device *bd = platform_get_drvdata(pdev); > + > + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); > + > + bd->props.power = FB_BLANK_UNBLANK; > + bd->props.brightness = 0; > + backlight_update_status(bd); > + > + if (pdata->gpio_enable >= 0) > + gpio_set_value_cansleep(pdata->gpio_enable, 0); > + > + return 0; > +} > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_bl_of_match[] = { > + { .compatible = "skyworks,sky81452-backlight", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); > +#endif > + > +static struct platform_driver sky81452_bl_driver = { > + .driver = { > + .name = "sky81452-backlight", > + .of_match_table = of_match_ptr(sky81452_bl_of_match), > + }, > + .probe = sky81452_bl_probe, > + .remove = sky81452_bl_remove, > +}; > + > +module_platform_driver(sky81452_bl_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL"); How about using 'GPL v2'? > +MODULE_VERSION("1.2"); > -- > 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver @ 2014-10-08 1:03 ` Jingoo Han 0 siblings, 0 replies; 163+ messages in thread From: Jingoo Han @ 2014-10-08 1:03 UTC (permalink / raw) To: 'Gyungoh Yoo' Cc: 'Bryan Wu', 'Lee Jones', 'Jean-Christophe Plagniol-Villard', 'Tomi Valkeinen', 'Grant Likely', 'Rob Herring', linux-kernel-u79uwXL29TY76Z2rM5mHXA, linux-fbdev-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, 'Gyungoh Yoo ', 'Jingoo Han' On Tuesday, October 07, 2014 2:01 PM, Gyungoh Yoo wrote: > If possible, please add more detailed commit message for this patch. > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > drivers/video/backlight/Kconfig | 10 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ > 3 files changed, 358 insertions(+) > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > index 8d03924..2586fdd 100644 > --- a/drivers/video/backlight/Kconfig > +++ b/drivers/video/backlight/Kconfig > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > If you have a Pandora console, say Y to enable the > backlight driver. > > +config BACKLIGHT_SKY81452 > + tristate "Backlight driver for SKY81452" > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > + help > + If you have a Skyworks SKY81452, say Y to enable the > + backlight driver. > + > + To compile this driver as a module, choose M here: the module will > + be called sky81452-backlight > + > config BACKLIGHT_TPS65217 > tristate "TPS65217 Backlight" > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > index fcd50b73..d67073f 100644 > --- a/drivers/video/backlight/Makefile > +++ b/drivers/video/backlight/Makefile > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452- > backlight.c > new file mode 100644 > index 0000000..101399d > --- /dev/null > +++ b/drivers/video/backlight/sky81452-backlight.c > @@ -0,0 +1,347 @@ > +/* > + * sky81452-backlight.c SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/platform_device.h> > +#include <linux/slab.h> > +#include <linux/of.h> > +#include <linux/err.h> > +#include <linux/gpio.h> > +#include <linux/of_gpio.h> > +#include <linux/regmap.h> > +#include <linux/backlight.h> > +#include <linux/sky81452-backlight.h> Please, re-order these headers alphabetically. It enhances the readability. > + > +/* registers */ > +#define SKY81452_REG0 0x00 > +#define SKY81452_REG1 0x01 > +#define SKY81452_REG2 0x02 > +#define SKY81452_REG4 0x04 > +#define SKY81452_REG5 0x05 > + > +/* bit mask */ > +#define SKY81452_CS 0xFF > +#define SKY81452_EN 0x3F > +#define SKY81452_IGPW 0x20 > +#define SKY81452_PWMMD 0x10 > +#define SKY81452_PHASE 0x08 > +#define SKY81452_ILIM 0x04 > +#define SKY81452_VSHRT 0x03 > +#define SKY81452_OCP 0x80 > +#define SKY81452_OTMP 0x40 > +#define SKY81452_SHRT 0x3F > +#define SKY81452_OPN 0x3F > + > +#define SKY81452_DEFAULT_NAME "lcd-backlight" > +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > + > +#define CTZ(b) __builtin_ctz(b) > + > +static int sky81452_bl_update_status(struct backlight_device *bd) > +{ > + const struct sky81452_bl_platform_data *pdata = > + dev_get_platdata(bd->dev.parent); > + const unsigned int brightness = (unsigned int)bd->props.brightness; > + struct regmap *regmap = bl_get_data(bd); > + int ret; > + > + if (brightness > 0) { > + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + pdata->enable << CTZ(SKY81452_EN)); > + } > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > +} > + > +static int sky81452_bl_get_brightness(struct backlight_device *bd) > +{ > + return bd->props.brightness; > +} > + > +static const struct backlight_ops sky81452_bl_ops = { > + .update_status = sky81452_bl_update_status, > + .get_brightness = sky81452_bl_get_brightness, > +}; > + > +static ssize_t sky81452_bl_store_enable(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned long value; > + int ret; > + > + ret = kstrtoul(buf, 16, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + value << CTZ(SKY81452_EN)); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return count; > +} > + > +static ssize_t sky81452_bl_show_open_short(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int reg, value = 0; > + char tmp[3]; > + int i, ret; > + > + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > + ret = regmap_read(regmap, reg, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + if (value & SKY81452_SHRT) { > + *buf = 0; > + for (i = 0; i < 6; i++) { > + if (value & 0x01) { > + sprintf(tmp, "%d ", i + 1); > + strcat(buf, tmp); > + } > + value >>= 1; > + } > + strcat(buf, "\n"); > + } else > + strcpy(buf, "none\n"); Please add braces to 'else' statement. If only one branch of a conditional statement is a single statement. Braces are needed. if () { ... (multi lines) } else { ... } > + > + return strlen(buf); > +} > + > +static ssize_t sky81452_bl_show_fault(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int value = 0; > + int ret; > + > + ret = regmap_read(regmap, SKY81452_REG4, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + *buf = 0; > + > + if (value & SKY81452_OCP) > + strcat(buf, "over-current "); > + > + if (value & SKY81452_OTMP) > + strcat(buf, "over-temperature"); > + > + strcat(buf, "\n"); > + return strlen(buf); > +} > + > +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > + > +static struct attribute *sky81452_bl_attribute[] = { > + &dev_attr_enable.attr, > + &dev_attr_open.attr, > + &dev_attr_short.attr, > + &dev_attr_fault.attr, > + NULL > +}; > + > +static const struct attribute_group sky81452_bl_attr_group = { > + .attrs = sky81452_bl_attribute, > +}; > + > +#ifdef CONFIG_OF > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + struct device_node *np = of_node_get(dev->of_node); > + struct sky81452_bl_platform_data *pdata; > + int ret; > + > + if (!np) { > + dev_err(dev, "backlight node not found"); > + return ERR_PTR(-ENODATA); > + } > + > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) { > + of_node_put(np); > + return ERR_PTR(-ENOMEM); > + } > + > + of_property_read_string(np, "name", &pdata->name); > + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); > + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); > + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); > + > + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); > + if (IS_ERR_VALUE(pdata->gpio_enable)) > + pdata->gpio_enable = -1; > + > + ret = of_property_read_u32(np, "enable", &pdata->enable); > + if (IS_ERR_VALUE(ret)) > + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); > + > + ret = of_property_read_u32(np, "short-detection-threshold", > + &pdata->short_detection_threshold); > + if (IS_ERR_VALUE(ret)) > + pdata->short_detection_threshold = 7; > + > + ret = of_property_read_u32(np, "boost-current-limit", > + &pdata->boost_current_limit); > + if (IS_ERR_VALUE(ret)) > + pdata->boost_current_limit = 2750; > + > + of_node_put(np); > + return pdata; > +} > +#else > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + return ERR_PTR(-EINVAL); > +} > +#endif > + > +static int sky81452_bl_init_device(struct regmap *regmap, > + struct sky81452_bl_platform_data *pdata) > +{ > + unsigned int value; > + > + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; > + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; > + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; > + > + if (pdata->boost_current_limit == 2300) > + value |= SKY81452_ILIM; > + else if (pdata->boost_current_limit != 2720) > + return -EINVAL; > + > + if (pdata->short_detection_threshold < 4 || > + pdata->short_detection_threshold > 7) > + return -EINVAL; > + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); > + > + return regmap_write(regmap, SKY81452_REG2, value); > +} > + > +static int sky81452_bl_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct regmap *regmap = dev_get_drvdata(dev->parent); > + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); > + struct backlight_device *bd; > + struct backlight_properties props; > + const char *name; > + int ret; > + > + if (!pdata) { > + pdata = sky81452_bl_parse_dt(dev); > + if (IS_ERR(pdata)) > + return PTR_ERR(pdata); > + } > + > + if (pdata->gpio_enable >= 0) { > + ret = devm_gpio_request_one(dev, pdata->gpio_enable, > + GPIOF_OUT_INIT_HIGH, "sky81452-en"); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to request GPIO. err=%d", ret); > + return ret; > + } > + } > + > + ret = sky81452_bl_init_device(regmap, pdata); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to initialize. err=%d", ret); > + return ret; > + } > + > + memset(&props, 0, sizeof(props)); > + props.max_brightness = SKY81452_MAX_BRIGHTNESS, > + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; > + bd = devm_backlight_device_register(dev, name, dev, regmap, > + &sky81452_bl_ops, &props); > + if (IS_ERR(bd)) { > + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); > + return PTR_ERR(bd); > + } > + > + platform_set_drvdata(pdev, bd); > + > + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); > + if (IS_ERR_VALUE(ret)) { > + dev_err(dev, "failed to create attribute. err=%d", ret); > + goto err; > + } > + > + return ret; > +err: > + backlight_device_unregister(bd); This backlight_device_unregister() is NOT necessary. This is because backlight_device_unregister will be called automatically, when devm_backlight_device_register() is used and error returns. > + return ret; > +} > + > +static int sky81452_bl_remove(struct platform_device *pdev) > +{ > + const struct sky81452_bl_platform_data *pdata = > + dev_get_platdata(&pdev->dev); > + struct backlight_device *bd = platform_get_drvdata(pdev); > + > + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); > + > + bd->props.power = FB_BLANK_UNBLANK; > + bd->props.brightness = 0; > + backlight_update_status(bd); > + > + if (pdata->gpio_enable >= 0) > + gpio_set_value_cansleep(pdata->gpio_enable, 0); > + > + return 0; > +} > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_bl_of_match[] = { > + { .compatible = "skyworks,sky81452-backlight", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); > +#endif > + > +static struct platform_driver sky81452_bl_driver = { > + .driver = { > + .name = "sky81452-backlight", > + .of_match_table = of_match_ptr(sky81452_bl_of_match), > + }, > + .probe = sky81452_bl_probe, > + .remove = sky81452_bl_remove, > +}; > + > +module_platform_driver(sky81452_bl_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > +MODULE_LICENSE("GPL"); How about using 'GPL v2'? > +MODULE_VERSION("1.2"); > -- > 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver 2014-10-08 1:03 ` Jingoo Han @ 2014-10-08 8:55 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-08 8:55 UTC (permalink / raw) To: Jingoo Han Cc: 'Bryan Wu', 'Lee Jones', 'Jean-Christophe Plagniol-Villard', 'Tomi Valkeinen', 'Grant Likely', 'Rob Herring', linux-kernel, linux-fbdev, devicetree, 'Gyungoh Yoo ' On Wed, Oct 08, 2014 at 10:03:57AM +0900, Jingoo Han wrote: > On Tuesday, October 07, 2014 2:01 PM, Gyungoh Yoo wrote: > > > > If possible, please add more detailed commit message for this patch. > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > drivers/video/backlight/Kconfig | 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ > > 3 files changed, 358 insertions(+) > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > > > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > > index 8d03924..2586fdd 100644 > > --- a/drivers/video/backlight/Kconfig > > +++ b/drivers/video/backlight/Kconfig > > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > > If you have a Pandora console, say Y to enable the > > backlight driver. > > > > +config BACKLIGHT_SKY81452 > > + tristate "Backlight driver for SKY81452" > > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > > + help > > + If you have a Skyworks SKY81452, say Y to enable the > > + backlight driver. > > + > > + To compile this driver as a module, choose M here: the module will > > + be called sky81452-backlight > > + > > config BACKLIGHT_TPS65217 > > tristate "TPS65217 Backlight" > > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > > diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > > index fcd50b73..d67073f 100644 > > --- a/drivers/video/backlight/Makefile > > +++ b/drivers/video/backlight/Makefile > > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > > diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452- > > backlight.c > > new file mode 100644 > > index 0000000..101399d > > --- /dev/null > > +++ b/drivers/video/backlight/sky81452-backlight.c > > @@ -0,0 +1,347 @@ > > +/* > > + * sky81452-backlight.c SKY81452 backlight driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/platform_device.h> > > +#include <linux/slab.h> > > +#include <linux/of.h> > > +#include <linux/err.h> > > +#include <linux/gpio.h> > > +#include <linux/of_gpio.h> > > +#include <linux/regmap.h> > > +#include <linux/backlight.h> > > +#include <linux/sky81452-backlight.h> > > Please, re-order these headers alphabetically. > It enhances the readability. I see. > > > + > > +/* registers */ > > +#define SKY81452_REG0 0x00 > > +#define SKY81452_REG1 0x01 > > +#define SKY81452_REG2 0x02 > > +#define SKY81452_REG4 0x04 > > +#define SKY81452_REG5 0x05 > > + > > +/* bit mask */ > > +#define SKY81452_CS 0xFF > > +#define SKY81452_EN 0x3F > > +#define SKY81452_IGPW 0x20 > > +#define SKY81452_PWMMD 0x10 > > +#define SKY81452_PHASE 0x08 > > +#define SKY81452_ILIM 0x04 > > +#define SKY81452_VSHRT 0x03 > > +#define SKY81452_OCP 0x80 > > +#define SKY81452_OTMP 0x40 > > +#define SKY81452_SHRT 0x3F > > +#define SKY81452_OPN 0x3F > > + > > +#define SKY81452_DEFAULT_NAME "lcd-backlight" > > +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > > + > > +#define CTZ(b) __builtin_ctz(b) > > + > > +static int sky81452_bl_update_status(struct backlight_device *bd) > > +{ > > + const struct sky81452_bl_platform_data *pdata > > + dev_get_platdata(bd->dev.parent); > > + const unsigned int brightness = (unsigned int)bd->props.brightness; > > + struct regmap *regmap = bl_get_data(bd); > > + int ret; > > + > > + if (brightness > 0) { > > + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > > + pdata->enable << CTZ(SKY81452_EN)); > > + } > > + > > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > > +} > > + > > +static int sky81452_bl_get_brightness(struct backlight_device *bd) > > +{ > > + return bd->props.brightness; > > +} > > + > > +static const struct backlight_ops sky81452_bl_ops = { > > + .update_status = sky81452_bl_update_status, > > + .get_brightness = sky81452_bl_get_brightness, > > +}; > > + > > +static ssize_t sky81452_bl_store_enable(struct device *dev, > > + struct device_attribute *attr, const char *buf, size_t count) > > +{ > > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > > + unsigned long value; > > + int ret; > > + > > + ret = kstrtoul(buf, 16, &value); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > > + value << CTZ(SKY81452_EN)); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + return count; > > +} > > + > > +static ssize_t sky81452_bl_show_open_short(struct device *dev, > > + struct device_attribute *attr, char *buf) > > +{ > > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > > + unsigned int reg, value = 0; > > + char tmp[3]; > > + int i, ret; > > + > > + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > > + ret = regmap_read(regmap, reg, &value); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + if (value & SKY81452_SHRT) { > > + *buf = 0; > > + for (i = 0; i < 6; i++) { > > + if (value & 0x01) { > > + sprintf(tmp, "%d ", i + 1); > > + strcat(buf, tmp); > > + } > > + value >>= 1; > > + } > > + strcat(buf, "\n"); > > + } else > > + strcpy(buf, "none\n"); > > Please add braces to 'else' statement. > > If only one branch of a conditional statement is a single > statement. Braces are needed. > > if () { > ... (multi lines) > } else { > ... > } I see. > > > > + > > + return strlen(buf); > > +} > > + > > +static ssize_t sky81452_bl_show_fault(struct device *dev, > > + struct device_attribute *attr, char *buf) > > +{ > > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > > + unsigned int value = 0; > > + int ret; > > + > > + ret = regmap_read(regmap, SKY81452_REG4, &value); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + *buf = 0; > > + > > + if (value & SKY81452_OCP) > > + strcat(buf, "over-current "); > > + > > + if (value & SKY81452_OTMP) > > + strcat(buf, "over-temperature"); > > + > > + strcat(buf, "\n"); > > + return strlen(buf); > > +} > > + > > +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > > +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > > +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > > +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > > + > > +static struct attribute *sky81452_bl_attribute[] = { > > + &dev_attr_enable.attr, > > + &dev_attr_open.attr, > > + &dev_attr_short.attr, > > + &dev_attr_fault.attr, > > + NULL > > +}; > > + > > +static const struct attribute_group sky81452_bl_attr_group = { > > + .attrs = sky81452_bl_attribute, > > +}; > > + > > +#ifdef CONFIG_OF > > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > > + struct device *dev) > > +{ > > + struct device_node *np = of_node_get(dev->of_node); > > + struct sky81452_bl_platform_data *pdata; > > + int ret; > > + > > + if (!np) { > > + dev_err(dev, "backlight node not found"); > > + return ERR_PTR(-ENODATA); > > + } > > + > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) { > > + of_node_put(np); > > + return ERR_PTR(-ENOMEM); > > + } > > + > > + of_property_read_string(np, "name", &pdata->name); > > + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); > > + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); > > + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); > > + > > + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); > > + if (IS_ERR_VALUE(pdata->gpio_enable)) > > + pdata->gpio_enable = -1; > > + > > + ret = of_property_read_u32(np, "enable", &pdata->enable); > > + if (IS_ERR_VALUE(ret)) > > + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); > > + > > + ret = of_property_read_u32(np, "short-detection-threshold", > > + &pdata->short_detection_threshold); > > + if (IS_ERR_VALUE(ret)) > > + pdata->short_detection_threshold = 7; > > + > > + ret = of_property_read_u32(np, "boost-current-limit", > > + &pdata->boost_current_limit); > > + if (IS_ERR_VALUE(ret)) > > + pdata->boost_current_limit = 2750; > > + > > + of_node_put(np); > > + return pdata; > > +} > > +#else > > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > > + struct device *dev) > > +{ > > + return ERR_PTR(-EINVAL); > > +} > > +#endif > > + > > +static int sky81452_bl_init_device(struct regmap *regmap, > > + struct sky81452_bl_platform_data *pdata) > > +{ > > + unsigned int value; > > + > > + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; > > + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; > > + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; > > + > > + if (pdata->boost_current_limit = 2300) > > + value |= SKY81452_ILIM; > > + else if (pdata->boost_current_limit != 2720) > > + return -EINVAL; > > + > > + if (pdata->short_detection_threshold < 4 || > > + pdata->short_detection_threshold > 7) > > + return -EINVAL; > > + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); > > + > > + return regmap_write(regmap, SKY81452_REG2, value); > > +} > > + > > +static int sky81452_bl_probe(struct platform_device *pdev) > > +{ > > + struct device *dev = &pdev->dev; > > + struct regmap *regmap = dev_get_drvdata(dev->parent); > > + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); > > + struct backlight_device *bd; > > + struct backlight_properties props; > > + const char *name; > > + int ret; > > + > > + if (!pdata) { > > + pdata = sky81452_bl_parse_dt(dev); > > + if (IS_ERR(pdata)) > > + return PTR_ERR(pdata); > > + } > > + > > + if (pdata->gpio_enable >= 0) { > > + ret = devm_gpio_request_one(dev, pdata->gpio_enable, > > + GPIOF_OUT_INIT_HIGH, "sky81452-en"); > > + if (IS_ERR_VALUE(ret)) { > > + dev_err(dev, "failed to request GPIO. err=%d", ret); > > + return ret; > > + } > > + } > > + > > + ret = sky81452_bl_init_device(regmap, pdata); > > + if (IS_ERR_VALUE(ret)) { > > + dev_err(dev, "failed to initialize. err=%d", ret); > > + return ret; > > + } > > + > > + memset(&props, 0, sizeof(props)); > > + props.max_brightness = SKY81452_MAX_BRIGHTNESS, > > + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; > > + bd = devm_backlight_device_register(dev, name, dev, regmap, > > + &sky81452_bl_ops, &props); > > + if (IS_ERR(bd)) { > > + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); > > + return PTR_ERR(bd); > > + } > > + > > + platform_set_drvdata(pdev, bd); > > + > > + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); > > + if (IS_ERR_VALUE(ret)) { > > + dev_err(dev, "failed to create attribute. err=%d", ret); > > + goto err; > > + } > > + > > + return ret; > > +err: > > + backlight_device_unregister(bd); > > This backlight_device_unregister() is NOT necessary. > This is because backlight_device_unregister will be called > automatically, when devm_backlight_device_register() is used > and error returns. I see. > > > + return ret; > > +} > > + > > +static int sky81452_bl_remove(struct platform_device *pdev) > > +{ > > + const struct sky81452_bl_platform_data *pdata > > + dev_get_platdata(&pdev->dev); > > + struct backlight_device *bd = platform_get_drvdata(pdev); > > + > > + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); > > + > > + bd->props.power = FB_BLANK_UNBLANK; > > + bd->props.brightness = 0; > > + backlight_update_status(bd); > > + > > + if (pdata->gpio_enable >= 0) > > + gpio_set_value_cansleep(pdata->gpio_enable, 0); > > + > > + return 0; > > +} > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_bl_of_match[] = { > > + { .compatible = "skyworks,sky81452-backlight", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); > > +#endif > > + > > +static struct platform_driver sky81452_bl_driver = { > > + .driver = { > > + .name = "sky81452-backlight", > > + .of_match_table = of_match_ptr(sky81452_bl_of_match), > > + }, > > + .probe = sky81452_bl_probe, > > + .remove = sky81452_bl_remove, > > +}; > > + > > +module_platform_driver(sky81452_bl_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL"); > > How about using 'GPL v2'? I will change it. Thanks you so much for your review. > > > +MODULE_VERSION("1.2"); > > -- > > 1.9.1 > ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver @ 2014-10-08 8:55 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-08 8:55 UTC (permalink / raw) To: Jingoo Han Cc: 'Bryan Wu', 'Lee Jones', 'Jean-Christophe Plagniol-Villard', 'Tomi Valkeinen', 'Grant Likely', 'Rob Herring', linux-kernel, linux-fbdev, devicetree, 'Gyungoh Yoo ' On Wed, Oct 08, 2014 at 10:03:57AM +0900, Jingoo Han wrote: > On Tuesday, October 07, 2014 2:01 PM, Gyungoh Yoo wrote: > > > > If possible, please add more detailed commit message for this patch. > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > drivers/video/backlight/Kconfig | 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 347 +++++++++++++++++++++++++++ > > 3 files changed, 358 insertions(+) > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > > > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > > index 8d03924..2586fdd 100644 > > --- a/drivers/video/backlight/Kconfig > > +++ b/drivers/video/backlight/Kconfig > > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > > If you have a Pandora console, say Y to enable the > > backlight driver. > > > > +config BACKLIGHT_SKY81452 > > + tristate "Backlight driver for SKY81452" > > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > > + help > > + If you have a Skyworks SKY81452, say Y to enable the > > + backlight driver. > > + > > + To compile this driver as a module, choose M here: the module will > > + be called sky81452-backlight > > + > > config BACKLIGHT_TPS65217 > > tristate "TPS65217 Backlight" > > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > > diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > > index fcd50b73..d67073f 100644 > > --- a/drivers/video/backlight/Makefile > > +++ b/drivers/video/backlight/Makefile > > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > > diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452- > > backlight.c > > new file mode 100644 > > index 0000000..101399d > > --- /dev/null > > +++ b/drivers/video/backlight/sky81452-backlight.c > > @@ -0,0 +1,347 @@ > > +/* > > + * sky81452-backlight.c SKY81452 backlight driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/platform_device.h> > > +#include <linux/slab.h> > > +#include <linux/of.h> > > +#include <linux/err.h> > > +#include <linux/gpio.h> > > +#include <linux/of_gpio.h> > > +#include <linux/regmap.h> > > +#include <linux/backlight.h> > > +#include <linux/sky81452-backlight.h> > > Please, re-order these headers alphabetically. > It enhances the readability. I see. > > > + > > +/* registers */ > > +#define SKY81452_REG0 0x00 > > +#define SKY81452_REG1 0x01 > > +#define SKY81452_REG2 0x02 > > +#define SKY81452_REG4 0x04 > > +#define SKY81452_REG5 0x05 > > + > > +/* bit mask */ > > +#define SKY81452_CS 0xFF > > +#define SKY81452_EN 0x3F > > +#define SKY81452_IGPW 0x20 > > +#define SKY81452_PWMMD 0x10 > > +#define SKY81452_PHASE 0x08 > > +#define SKY81452_ILIM 0x04 > > +#define SKY81452_VSHRT 0x03 > > +#define SKY81452_OCP 0x80 > > +#define SKY81452_OTMP 0x40 > > +#define SKY81452_SHRT 0x3F > > +#define SKY81452_OPN 0x3F > > + > > +#define SKY81452_DEFAULT_NAME "lcd-backlight" > > +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > > + > > +#define CTZ(b) __builtin_ctz(b) > > + > > +static int sky81452_bl_update_status(struct backlight_device *bd) > > +{ > > + const struct sky81452_bl_platform_data *pdata = > > + dev_get_platdata(bd->dev.parent); > > + const unsigned int brightness = (unsigned int)bd->props.brightness; > > + struct regmap *regmap = bl_get_data(bd); > > + int ret; > > + > > + if (brightness > 0) { > > + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > > + pdata->enable << CTZ(SKY81452_EN)); > > + } > > + > > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > > +} > > + > > +static int sky81452_bl_get_brightness(struct backlight_device *bd) > > +{ > > + return bd->props.brightness; > > +} > > + > > +static const struct backlight_ops sky81452_bl_ops = { > > + .update_status = sky81452_bl_update_status, > > + .get_brightness = sky81452_bl_get_brightness, > > +}; > > + > > +static ssize_t sky81452_bl_store_enable(struct device *dev, > > + struct device_attribute *attr, const char *buf, size_t count) > > +{ > > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > > + unsigned long value; > > + int ret; > > + > > + ret = kstrtoul(buf, 16, &value); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > > + value << CTZ(SKY81452_EN)); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + return count; > > +} > > + > > +static ssize_t sky81452_bl_show_open_short(struct device *dev, > > + struct device_attribute *attr, char *buf) > > +{ > > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > > + unsigned int reg, value = 0; > > + char tmp[3]; > > + int i, ret; > > + > > + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > > + ret = regmap_read(regmap, reg, &value); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + if (value & SKY81452_SHRT) { > > + *buf = 0; > > + for (i = 0; i < 6; i++) { > > + if (value & 0x01) { > > + sprintf(tmp, "%d ", i + 1); > > + strcat(buf, tmp); > > + } > > + value >>= 1; > > + } > > + strcat(buf, "\n"); > > + } else > > + strcpy(buf, "none\n"); > > Please add braces to 'else' statement. > > If only one branch of a conditional statement is a single > statement. Braces are needed. > > if () { > ... (multi lines) > } else { > ... > } I see. > > > > + > > + return strlen(buf); > > +} > > + > > +static ssize_t sky81452_bl_show_fault(struct device *dev, > > + struct device_attribute *attr, char *buf) > > +{ > > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > > + unsigned int value = 0; > > + int ret; > > + > > + ret = regmap_read(regmap, SKY81452_REG4, &value); > > + if (IS_ERR_VALUE(ret)) > > + return ret; > > + > > + *buf = 0; > > + > > + if (value & SKY81452_OCP) > > + strcat(buf, "over-current "); > > + > > + if (value & SKY81452_OTMP) > > + strcat(buf, "over-temperature"); > > + > > + strcat(buf, "\n"); > > + return strlen(buf); > > +} > > + > > +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > > +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > > +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > > +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > > + > > +static struct attribute *sky81452_bl_attribute[] = { > > + &dev_attr_enable.attr, > > + &dev_attr_open.attr, > > + &dev_attr_short.attr, > > + &dev_attr_fault.attr, > > + NULL > > +}; > > + > > +static const struct attribute_group sky81452_bl_attr_group = { > > + .attrs = sky81452_bl_attribute, > > +}; > > + > > +#ifdef CONFIG_OF > > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > > + struct device *dev) > > +{ > > + struct device_node *np = of_node_get(dev->of_node); > > + struct sky81452_bl_platform_data *pdata; > > + int ret; > > + > > + if (!np) { > > + dev_err(dev, "backlight node not found"); > > + return ERR_PTR(-ENODATA); > > + } > > + > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) { > > + of_node_put(np); > > + return ERR_PTR(-ENOMEM); > > + } > > + > > + of_property_read_string(np, "name", &pdata->name); > > + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); > > + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); > > + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); > > + > > + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); > > + if (IS_ERR_VALUE(pdata->gpio_enable)) > > + pdata->gpio_enable = -1; > > + > > + ret = of_property_read_u32(np, "enable", &pdata->enable); > > + if (IS_ERR_VALUE(ret)) > > + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); > > + > > + ret = of_property_read_u32(np, "short-detection-threshold", > > + &pdata->short_detection_threshold); > > + if (IS_ERR_VALUE(ret)) > > + pdata->short_detection_threshold = 7; > > + > > + ret = of_property_read_u32(np, "boost-current-limit", > > + &pdata->boost_current_limit); > > + if (IS_ERR_VALUE(ret)) > > + pdata->boost_current_limit = 2750; > > + > > + of_node_put(np); > > + return pdata; > > +} > > +#else > > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > > + struct device *dev) > > +{ > > + return ERR_PTR(-EINVAL); > > +} > > +#endif > > + > > +static int sky81452_bl_init_device(struct regmap *regmap, > > + struct sky81452_bl_platform_data *pdata) > > +{ > > + unsigned int value; > > + > > + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; > > + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; > > + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; > > + > > + if (pdata->boost_current_limit == 2300) > > + value |= SKY81452_ILIM; > > + else if (pdata->boost_current_limit != 2720) > > + return -EINVAL; > > + > > + if (pdata->short_detection_threshold < 4 || > > + pdata->short_detection_threshold > 7) > > + return -EINVAL; > > + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); > > + > > + return regmap_write(regmap, SKY81452_REG2, value); > > +} > > + > > +static int sky81452_bl_probe(struct platform_device *pdev) > > +{ > > + struct device *dev = &pdev->dev; > > + struct regmap *regmap = dev_get_drvdata(dev->parent); > > + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); > > + struct backlight_device *bd; > > + struct backlight_properties props; > > + const char *name; > > + int ret; > > + > > + if (!pdata) { > > + pdata = sky81452_bl_parse_dt(dev); > > + if (IS_ERR(pdata)) > > + return PTR_ERR(pdata); > > + } > > + > > + if (pdata->gpio_enable >= 0) { > > + ret = devm_gpio_request_one(dev, pdata->gpio_enable, > > + GPIOF_OUT_INIT_HIGH, "sky81452-en"); > > + if (IS_ERR_VALUE(ret)) { > > + dev_err(dev, "failed to request GPIO. err=%d", ret); > > + return ret; > > + } > > + } > > + > > + ret = sky81452_bl_init_device(regmap, pdata); > > + if (IS_ERR_VALUE(ret)) { > > + dev_err(dev, "failed to initialize. err=%d", ret); > > + return ret; > > + } > > + > > + memset(&props, 0, sizeof(props)); > > + props.max_brightness = SKY81452_MAX_BRIGHTNESS, > > + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; > > + bd = devm_backlight_device_register(dev, name, dev, regmap, > > + &sky81452_bl_ops, &props); > > + if (IS_ERR(bd)) { > > + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); > > + return PTR_ERR(bd); > > + } > > + > > + platform_set_drvdata(pdev, bd); > > + > > + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); > > + if (IS_ERR_VALUE(ret)) { > > + dev_err(dev, "failed to create attribute. err=%d", ret); > > + goto err; > > + } > > + > > + return ret; > > +err: > > + backlight_device_unregister(bd); > > This backlight_device_unregister() is NOT necessary. > This is because backlight_device_unregister will be called > automatically, when devm_backlight_device_register() is used > and error returns. I see. > > > + return ret; > > +} > > + > > +static int sky81452_bl_remove(struct platform_device *pdev) > > +{ > > + const struct sky81452_bl_platform_data *pdata = > > + dev_get_platdata(&pdev->dev); > > + struct backlight_device *bd = platform_get_drvdata(pdev); > > + > > + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); > > + > > + bd->props.power = FB_BLANK_UNBLANK; > > + bd->props.brightness = 0; > > + backlight_update_status(bd); > > + > > + if (pdata->gpio_enable >= 0) > > + gpio_set_value_cansleep(pdata->gpio_enable, 0); > > + > > + return 0; > > +} > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_bl_of_match[] = { > > + { .compatible = "skyworks,sky81452-backlight", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); > > +#endif > > + > > +static struct platform_driver sky81452_bl_driver = { > > + .driver = { > > + .name = "sky81452-backlight", > > + .of_match_table = of_match_ptr(sky81452_bl_of_match), > > + }, > > + .probe = sky81452_bl_probe, > > + .remove = sky81452_bl_remove, > > +}; > > + > > +module_platform_driver(sky81452_bl_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL"); > > How about using 'GPL v2'? I will change it. Thanks you so much for your review. > > > +MODULE_VERSION("1.2"); > > -- > > 1.9.1 > ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 4/8] devicetree: backlight: add new SKY81452 backlight binding 2014-10-07 4:55 ` Gyungoh Yoo @ 2014-10-07 5:04 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:04 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8 Cc: mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 4/8] devicetree: backlight: add new SKY81452 backlight binding @ 2014-10-07 5:04 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:04 UTC (permalink / raw) To: robh+dt, pawel.moll Cc: mark.rutland, ijc+devicetree, galak, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. 2014-10-07 4:55 ` Gyungoh Yoo @ 2014-10-07 5:06 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:06 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8 Cc: mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, jason-NLaQJdtUoK4Be96aLqz0jA, heiko.stuebner-HCpLIkUQxWGakBO8gow8eQ, florian.vaussard-p8DiymsW2f8, shawn.guo-KZfg59tc24xl57MIdRCFDg, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, andrew-g2DYL2Zd6BY, silvio.fricke-Re5JQEeQqe8AvxtiuMwx3w, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index ac7269f..c755978 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -125,6 +125,7 @@ silabs Silicon Laboratories simtek sii Seiko Instruments, Inc. sirf SiRF Technology, Inc. +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. @ 2014-10-07 5:06 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:06 UTC (permalink / raw) To: robh+dt, pawel.moll Cc: mark.rutland, ijc+devicetree, galak, jason, heiko.stuebner, florian.vaussard, shawn.guo, thierry.reding, andrew, silvio.fricke, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index ac7269f..c755978 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -125,6 +125,7 @@ silabs Silicon Laboratories simtek sii Seiko Instruments, Inc. sirf SiRF Technology, Inc. +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list 2014-10-07 4:55 ` Gyungoh Yoo @ 2014-10-07 5:09 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:09 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8 Cc: mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, jason-NLaQJdtUoK4Be96aLqz0jA, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A, broonie-QSEj5FYQhm4dnm+yROfE0A, jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/, arno-LkuqDEemtHBg9hUCZPvPmw, thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8, ktsai-GubuWUlQtMwciDkP5Hr2oA, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 6af570e..ff77879 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -78,6 +78,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list @ 2014-10-07 5:09 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:09 UTC (permalink / raw) To: robh+dt, pawel.moll Cc: mark.rutland, ijc+devicetree, galak, jason, linux, andrew, jic23, broonie, jgunthorpe, arno, thomas.petazzoni, ktsai, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 6af570e..ff77879 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -78,6 +78,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-07 4:55 ` Gyungoh Yoo @ 2014-10-07 5:11 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:11 UTC (permalink / raw) To: lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A Cc: grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- drivers/regulator/sky81452-regulator.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 97aff0c..f895d1b 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -68,12 +68,11 @@ static const struct regulator_desc sky81452_reg = { static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) { struct regulator_init_data *init_data; - struct device_node *np; + struct device_node *np = of_node_get(dev->of_node); - np = of_get_child_by_name(dev->parent->of_node, "regulator"); - if (unlikely(!np)) { + if (!np) { dev_err(dev, "regulator node not found"); - return NULL; + return ERR_PTR(-ENODATA); } init_data = of_get_regulator_init_data(dev, np); @@ -107,17 +106,28 @@ static int sky81452_reg_probe(struct platform_device *pdev) config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); - if (IS_ERR(rdev)) + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(rdev)); return PTR_ERR(rdev); + } platform_set_drvdata(pdev, rdev); return 0; } +#ifdef CONFIG_OF +static const struct of_device_id sky81452_reg_of_match[] = { + { .compatible = "skyworks,sky81452-regulator", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_reg_of_match); +#endif + static struct platform_driver sky81452_reg_driver = { .driver = { .name = "sky81452-regulator", + .of_match_table = of_match_ptr(sky81452_reg_of_match), }, .probe = sky81452_reg_probe, }; @@ -127,4 +137,4 @@ module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_VERSION("1.2"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-10-07 5:11 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:11 UTC (permalink / raw) To: lgirdwood, broonie Cc: grant.likely, robh+dt, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- drivers/regulator/sky81452-regulator.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 97aff0c..f895d1b 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -68,12 +68,11 @@ static const struct regulator_desc sky81452_reg = { static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) { struct regulator_init_data *init_data; - struct device_node *np; + struct device_node *np = of_node_get(dev->of_node); - np = of_get_child_by_name(dev->parent->of_node, "regulator"); - if (unlikely(!np)) { + if (!np) { dev_err(dev, "regulator node not found"); - return NULL; + return ERR_PTR(-ENODATA); } init_data = of_get_regulator_init_data(dev, np); @@ -107,17 +106,28 @@ static int sky81452_reg_probe(struct platform_device *pdev) config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); - if (IS_ERR(rdev)) + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(rdev)); return PTR_ERR(rdev); + } platform_set_drvdata(pdev, rdev); return 0; } +#ifdef CONFIG_OF +static const struct of_device_id sky81452_reg_of_match[] = { + { .compatible = "skyworks,sky81452-regulator", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_reg_of_match); +#endif + static struct platform_driver sky81452_reg_driver = { .driver = { .name = "sky81452-regulator", + .of_match_table = of_match_ptr(sky81452_reg_of_match), }, .probe = sky81452_reg_probe, }; @@ -127,4 +137,4 @@ module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_VERSION("1.2"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1412658667-8196-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-07 5:11 ` Gyungoh Yoo @ 2014-10-07 12:52 ` Mark Brown -1 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-10-07 12:52 UTC (permalink / raw) To: Gyungoh Yoo Cc: lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng [-- Attachment #1: Type: text/plain, Size: 663 bytes --] On Tue, Oct 07, 2014 at 02:11:07PM +0900, Gyungoh Yoo wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> Several problems here: - I don't have patches 1-6 or the cover letter for this series - what are the dependencies? - I can't see any sign that my concerns about the driver not actually being reusable have been addressed here. - This patch appears to do way more than add a compatible string, for example: > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > - if (unlikely(!np)) { > + if (!np) { > dev_err(dev, "regulator node not found"); > - return NULL; > + return ERR_PTR(-ENODATA); [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-10-07 12:52 ` Mark Brown 0 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-10-07 12:52 UTC (permalink / raw) To: Gyungoh Yoo Cc: lgirdwood, grant.likely, robh+dt, linux-kernel, devicetree, jack.yoo [-- Attachment #1: Type: text/plain, Size: 639 bytes --] On Tue, Oct 07, 2014 at 02:11:07PM +0900, Gyungoh Yoo wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> Several problems here: - I don't have patches 1-6 or the cover letter for this series - what are the dependencies? - I can't see any sign that my concerns about the driver not actually being reusable have been addressed here. - This patch appears to do way more than add a compatible string, for example: > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > - if (unlikely(!np)) { > + if (!np) { > dev_err(dev, "regulator node not found"); > - return NULL; > + return ERR_PTR(-ENODATA); [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20141007125221.GG4609-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-07 12:52 ` Mark Brown @ 2014-10-08 8:51 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-08 8:51 UTC (permalink / raw) To: Mark Brown Cc: lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng On Tue, Oct 07, 2014 at 01:52:21PM +0100, Mark Brown wrote: > On Tue, Oct 07, 2014 at 02:11:07PM +0900, Gyungoh Yoo wrote: > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > Several problems here: > > - I don't have patches 1-6 or the cover letter for this series - what > are the dependencies? > - I can't see any sign that my concerns about the driver not actually > being reusable have been addressed here. > - This patch appears to do way more than add a compatible string, for > example: I am sorry the recipients of each patch and cover letter was different. I will resubmit soon. > > > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > > - if (unlikely(!np)) { > > + if (!np) { > > dev_err(dev, "regulator node not found"); > > - return NULL; > > + return ERR_PTR(-ENODATA); -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-10-08 8:51 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-08 8:51 UTC (permalink / raw) To: Mark Brown Cc: lgirdwood, grant.likely, robh+dt, linux-kernel, devicetree, jack.yoo On Tue, Oct 07, 2014 at 01:52:21PM +0100, Mark Brown wrote: > On Tue, Oct 07, 2014 at 02:11:07PM +0900, Gyungoh Yoo wrote: > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Several problems here: > > - I don't have patches 1-6 or the cover letter for this series - what > are the dependencies? > - I can't see any sign that my concerns about the driver not actually > being reusable have been addressed here. > - This patch appears to do way more than add a compatible string, for > example: I am sorry the recipients of each patch and cover letter was different. I will resubmit soon. > > > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > > - if (unlikely(!np)) { > > + if (!np) { > > dev_err(dev, "regulator node not found"); > > - return NULL; > > + return ERR_PTR(-ENODATA); ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 8/8] devicetree: regulator: sky81452: Add compatible string for device binding 2014-10-07 4:55 ` Gyungoh Yoo @ 2014-10-07 5:13 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:13 UTC (permalink / raw) To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8 Cc: ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, jack.yoo-tjhQNA90jdKqndwCJWfcng Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Documentation/devicetree/bindings/regulator/sky81452-regulator.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt index 882455e..7b9ff18 100644 --- a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -1,6 +1,7 @@ SKY81452 voltage regulator Required properties: +- compatible : Must be "skyworks,sky81452-regulator" - any required generic properties defined in regulator.txt Optional properties: @@ -9,6 +10,7 @@ Optional properties: Example: regulator { + compatible = "skyworks,sky81452-regulator"; /* generic regulator properties */ regulator-name = "touch_en"; regulator-min-microvolt = <4500000>; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 8/8] devicetree: regulator: sky81452: Add compatible string for device binding @ 2014-10-07 5:13 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:13 UTC (permalink / raw) To: robh+dt, pawel.moll, mark.rutland Cc: ijc+devicetree, galak, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Documentation/devicetree/bindings/regulator/sky81452-regulator.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt index 882455e..7b9ff18 100644 --- a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -1,6 +1,7 @@ SKY81452 voltage regulator Required properties: +- compatible : Must be "skyworks,sky81452-regulator" - any required generic properties defined in regulator.txt Optional properties: @@ -9,6 +10,7 @@ Optional properties: Example: regulator { + compatible = "skyworks,sky81452-regulator"; /* generic regulator properties */ regulator-name = "touch_en"; regulator-min-microvolt = <4500000>; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 0/8] Add Skyworks SKY81452 device drivers 2014-10-07 4:55 ` Gyungoh Yoo @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. The initial version of sky81452-regulator was applied. Fo this, incremental patches are included. v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (8): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list regulator: sky81452: Add compatible string for device binding devicetree: regulator: sky81452: Add compatible string for device binding .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++ .../bindings/regulator/sky81452-regulator.txt | 8 + .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 110 +++++++ drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 23 +- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ include/linux/sky81452-backlight.h | 47 +++ 15 files changed, 640 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 0/8] Add Skyworks SKY81452 device drivers @ 2014-10-13 5:47 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. The initial version of sky81452-regulator was applied. Fo this, incremental patches are included. v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (8): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list regulator: sky81452: Add compatible string for device binding devicetree: regulator: sky81452: Add compatible string for device binding .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++ .../bindings/regulator/sky81452-regulator.txt | 8 + .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 110 +++++++ drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 23 +- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ include/linux/sky81452-backlight.h | 47 +++ 15 files changed, 640 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/sky81452-backlight.h -- 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-13 5:47 ` Gyungoh Yoo (?) @ 2014-10-13 5:47 ` Gyungoh Yoo [not found] ` <1413179262-27636-2-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> -1 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Changes v2: Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 110 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 155 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index cf66ef1..f62a4a4 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -641,6 +641,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index d58068a..2962396 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -170,6 +170,7 @@ obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..bdd3253 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,110 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-backlight"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices. err=%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1413179262-27636-2-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [RESUBMIT PATCH v4 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-13 5:47 ` [RESUBMIT PATCH v4 1/8] mfd: Add support for Skyworks SKY81452 driver Gyungoh Yoo @ 2014-10-21 12:30 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-10-21 12:30 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Mon, 13 Oct 2014, Gyungoh Yoo wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Changes v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > > Changes v2: > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors > > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 110 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 155 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h [...] > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/sky81452-backlight.h> Shouldn't this live in linux/platform_data? > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-10-21 12:30 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-10-21 12:30 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, 13 Oct 2014, Gyungoh Yoo wrote: > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Changes v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > > Changes v2: > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors > > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 110 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 155 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h [...] > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/sky81452-backlight.h> Shouldn't this live in linux/platform_data? > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-21 12:30 ` Lee Jones (?) @ 2014-10-23 3:16 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-23 3:16 UTC (permalink / raw) To: Lee Jones Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, Oct 21, 2014 at 01:30:01PM +0100, Lee Jones wrote: > On Mon, 13 Oct 2014, Gyungoh Yoo wrote: > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > Changes v4: > > Removed MODULE_VERSION() > > Modified license to GPLv2 > > > > Changes v3: > > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > > Assigned mfd_cell.of_compatible for binding device node > > Modified error messages > > > > Changes v2: > > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > > Added message for exception or errors > > > > drivers/mfd/Kconfig | 12 +++++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 110 +++++++++++++++++++++++++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 +++++++++++++ > > 4 files changed, 155 insertions(+) > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > [...] > > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include <linux/sky81452-backlight.h> > > Shouldn't this live in linux/platform_data? I will change the location to linux/platform_data and resubmit it. Thank you your review. > > > +#include <linux/regulator/machine.h> > > + > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 2/8] backlight: Add support Skyworks SKY81452 backlight driver 2014-10-13 5:47 ` Gyungoh Yoo (?) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Reordering header files for readability Removed calling to backlight_device_unregister() - because devm_backlight_device_register() was used Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified DBG messages Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++++++++ include/linux/sky81452-backlight.h | 47 ++++ 4 files changed, 402 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..3632e29 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,344 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/backlight.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/sky81452-backlight.h> +#include <linux/slab.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else { + strcpy(buf, "none\n"); + } + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO. err=%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize. err=%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute. err=%d", ret); + return ret; + } + + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/sky81452-backlight.h b/include/linux/sky81452-backlight.h new file mode 100644 index 0000000..b3635f9 --- /dev/null +++ b/include/linux/sky81452-backlight.h @@ -0,0 +1,47 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_BACKLIGHT_H +#define _SKY81452_BACKLIGHT_H + +/** + * struct sky81452_platform_data + * @name: backlight driver name. + If it is not defined, default name is lcd-backlight. + * @gpio_enable:GPIO number which control EN pin + * @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6. + * @ignore_pwm: true if DPWMI should be ignored. + * @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode. + * @phase_shift:true is phase shift mode. + * @short_detecion_threshold: It should be one of 4, 5, 6 and 7V. + * @boost_current_limit: It should be one of 2300, 2750mA. + */ +struct sky81452_bl_platform_data { + const char *name; + int gpio_enable; + unsigned int enable; + bool ignore_pwm; + bool dpwm_mode; + bool phase_shift; + unsigned int short_detection_threshold; + unsigned int boost_current_limit; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 3/8] devicetree: mfd: Add new SKY81452 mfd binding 2014-10-13 5:47 ` Gyungoh Yoo ` (2 preceding siblings ...) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..d61904a --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,32 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" +- reg : I2C slave address + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2c { + compatible = "skyworks,sky81452"; + reg = <0x2c>; + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; + + regulator { + compatible = "skyworks,sky81452-regulator"; + regulator-name = "touch_en"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 4/8] devicetree: backlight: Add new SKY81452 backlight binding 2014-10-13 5:47 ` Gyungoh Yoo ` (3 preceding siblings ...) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. 2014-10-13 5:47 ` Gyungoh Yoo ` (4 preceding siblings ...) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index f67e3f8..534a583 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -136,6 +136,7 @@ sii Seiko Instruments, Inc. silergy Silergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list 2014-10-13 5:47 ` Gyungoh Yoo ` (5 preceding siblings ...) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 5af3d9d..2ed3baa 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -78,6 +78,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-13 5:47 ` Gyungoh Yoo ` (6 preceding siblings ...) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo 2014-10-13 10:35 ` Mark Brown -1 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified to return ENODATA when of_node is NULL Modified the messages in error cases Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors. drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 23 ++++++++++++++++------- 2 files changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 55d7b7b..fe84bd4 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -547,7 +547,7 @@ config REGULATOR_S5M8767 config REGULATOR_SKY81452 tristate "Skyworks Solutions SKY81452 voltage regulator" - depends on SKY81452 + depends on MFD_SKY81452 help This driver supports Skyworks SKY81452 voltage output regulator via I2C bus. SKY81452 has one voltage linear regulator can be diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 97aff0c..dfdefdb 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -68,12 +68,11 @@ static const struct regulator_desc sky81452_reg = { static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) { struct regulator_init_data *init_data; - struct device_node *np; + struct device_node *np = of_node_get(dev->of_node); - np = of_get_child_by_name(dev->parent->of_node, "regulator"); - if (unlikely(!np)) { + if (!np) { dev_err(dev, "regulator node not found"); - return NULL; + return ERR_PTR(-ENODATA); } init_data = of_get_regulator_init_data(dev, np); @@ -107,17 +106,28 @@ static int sky81452_reg_probe(struct platform_device *pdev) config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); - if (IS_ERR(rdev)) + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(rdev)); return PTR_ERR(rdev); + } platform_set_drvdata(pdev, rdev); return 0; } +#ifdef CONFIG_OF +static const struct of_device_id sky81452_reg_of_match[] = { + { .compatible = "skyworks,sky81452-regulator", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_reg_of_match); +#endif + static struct platform_driver sky81452_reg_driver = { .driver = { .name = "sky81452-regulator", + .of_match_table = of_match_ptr(sky81452_reg_of_match), }, .probe = sky81452_reg_probe, }; @@ -126,5 +136,4 @@ module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); -MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL v2"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-13 5:47 ` [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding Gyungoh Yoo @ 2014-10-13 10:35 ` Mark Brown [not found] ` <20141013103512.GJ27755-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> 0 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-13 10:35 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 470 bytes --] On Mon, Oct 13, 2014 at 02:47:41PM +0900, Gyungoh Yoo wrote: > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > - if (unlikely(!np)) { > + if (!np) { > dev_err(dev, "regulator node not found"); > - return NULL; > + return ERR_PTR(-ENODATA); > } If you're doing anything here you should convert the code to use the simplified interface for parsing regulator data based on putting the subnode name and regualtor name in the regulator descriptor. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20141013103512.GJ27755-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-13 10:35 ` Mark Brown @ 2014-10-14 1:11 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-14 1:11 UTC (permalink / raw) To: Mark Brown Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Mon, Oct 13, 2014 at 12:35:12PM +0200, Mark Brown wrote: > On Mon, Oct 13, 2014 at 02:47:41PM +0900, Gyungoh Yoo wrote: > > > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > > - if (unlikely(!np)) { > > + if (!np) { > > dev_err(dev, "regulator node not found"); > > - return NULL; > > + return ERR_PTR(-ENODATA); > > } > > If you're doing anything here you should convert the code to use the > simplified interface for parsing regulator data based on putting the > subnode name and regualtor name in the regulator descriptor. Thank you for the review. The driver has of_device_id. static const struct of_device_id sky81452_reg_of_match[] = { { .compatible = "skyworks,sky81452-regulator", }, { } }; And the MFD adds the driver with of_compatible="skyworks,sky81452-regulator". MFD core maps the device node and the regulator driver does not need to parse the subnode name. Thanks. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-10-14 1:11 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-14 1:11 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, Oct 13, 2014 at 12:35:12PM +0200, Mark Brown wrote: > On Mon, Oct 13, 2014 at 02:47:41PM +0900, Gyungoh Yoo wrote: > > > - np = of_get_child_by_name(dev->parent->of_node, "regulator"); > > - if (unlikely(!np)) { > > + if (!np) { > > dev_err(dev, "regulator node not found"); > > - return NULL; > > + return ERR_PTR(-ENODATA); > > } > > If you're doing anything here you should convert the code to use the > simplified interface for parsing regulator data based on putting the > subnode name and regualtor name in the regulator descriptor. Thank you for the review. The driver has of_device_id. static const struct of_device_id sky81452_reg_of_match[] = { { .compatible = "skyworks,sky81452-regulator", }, { } }; And the MFD adds the driver with of_compatible="skyworks,sky81452-regulator". MFD core maps the device node and the regulator driver does not need to parse the subnode name. Thanks. ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-14 1:11 ` Gyungoh Yoo (?) @ 2014-10-14 7:56 ` Mark Brown 2014-10-17 9:19 ` Gyungoh Yoo -1 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-14 7:56 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 860 bytes --] On Tue, Oct 14, 2014 at 10:11:12AM +0900, Gyungoh Yoo wrote: > On Mon, Oct 13, 2014 at 12:35:12PM +0200, Mark Brown wrote: > > If you're doing anything here you should convert the code to use the > > simplified interface for parsing regulator data based on putting the > > subnode name and regualtor name in the regulator descriptor. > Thank you for the review. > The driver has of_device_id. > static const struct of_device_id sky81452_reg_of_match[] = { > { .compatible = "skyworks,sky81452-regulator", }, > { } > }; > And the MFD adds the driver with of_compatible="skyworks,sky81452-regulator". > MFD core maps the device node and the regulator driver does > not need to parse the subnode name. No, that's for the device (and as I say I don't think this is a good idea). I'm talking about the parsing of the constraints from the DT. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-14 7:56 ` Mark Brown @ 2014-10-17 9:19 ` Gyungoh Yoo 2014-10-17 10:17 ` Mark Brown 0 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-17 9:19 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, Oct 14, 2014 at 09:56:06AM +0200, Mark Brown wrote: > On Tue, Oct 14, 2014 at 10:11:12AM +0900, Gyungoh Yoo wrote: > > On Mon, Oct 13, 2014 at 12:35:12PM +0200, Mark Brown wrote: > > > > If you're doing anything here you should convert the code to use the > > > simplified interface for parsing regulator data based on putting the > > > subnode name and regualtor name in the regulator descriptor. > > > Thank you for the review. > > > The driver has of_device_id. > > > static const struct of_device_id sky81452_reg_of_match[] = { > > { .compatible = "skyworks,sky81452-regulator", }, > > { } > > }; > > > And the MFD adds the driver with of_compatible="skyworks,sky81452-regulator". > > MFD core maps the device node and the regulator driver does > > not need to parse the subnode name. > > No, that's for the device (and as I say I don't think this is a good > idea). I'm talking about the parsing of the constraints from the DT. Wow. I understand. I missed .supply_name. I think I need something like below, before devm_regulator_register(). config->supply_name = init_data->constraints.name; I will resubmit it. Thank you so much. ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-17 9:19 ` Gyungoh Yoo @ 2014-10-17 10:17 ` Mark Brown 2014-10-17 10:43 ` Gyungoh Yoo 0 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-17 10:17 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 571 bytes --] On Fri, Oct 17, 2014 at 06:19:50PM +0900, Gyungoh Yoo wrote: > Wow. I understand. > I missed .supply_name. I think I need something like > below, before devm_regulator_register(). > config->supply_name = init_data->constraints.name; > I will resubmit it. No, not supply_name (though you really should be initializing that anyway) and you definitely don't want to set supply_name to something from constraints. The supply_name should be the name of the input pin that supplies power to the regulator. I was referring to of_match and regulators_node. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-17 10:17 ` Mark Brown @ 2014-10-17 10:43 ` Gyungoh Yoo 2014-10-17 14:26 ` Mark Brown 0 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-17 10:43 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, Oct 17, 2014 at 12:17:34PM +0200, Mark Brown wrote: > On Fri, Oct 17, 2014 at 06:19:50PM +0900, Gyungoh Yoo wrote: > > > Wow. I understand. > > I missed .supply_name. I think I need something like > > below, before devm_regulator_register(). > > > config->supply_name = init_data->constraints.name; > > > I will resubmit it. > > No, not supply_name (though you really should be initializing that > anyway) and you definitely don't want to set supply_name to something > from constraints. The supply_name should be the name of the input pin > that supplies power to the regulator. I was referring to of_match and > regulators_node. Wow. I had misunderstanding. Are you talking about simplification using of_regulator_match()? This driver has only one regulator. Is the API also useful for this driver? Like reg-fixed-voltage, how about using of_get_fixed_voltage_config()? Thanks. ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-17 10:43 ` Gyungoh Yoo @ 2014-10-17 14:26 ` Mark Brown 2014-10-20 6:10 ` Gyungoh Yoo 0 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-17 14:26 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 963 bytes --] On Fri, Oct 17, 2014 at 07:43:09PM +0900, Gyungoh Yoo wrote: > Are you talking about simplification using of_regulator_match()? > This driver has only one regulator. > Is the API also useful for this driver? The thing I'm seeing is that the binding for your device with the subnode looks very much like the device trees of devices with multiple regulators. The fact that you only have one regulator is a bit difference but not that much. It seems like drivers should fit into one of two patterns: either the regulator is described in the root node for the device for single purpose devices or there should be a collection of regulators like is supported with this helper API. Having a collection with only one node doesn't seem to be a problem in any way. > Like reg-fixed-voltage, how about using of_get_fixed_voltage_config()? The driver doesn't seem to need any property parsing of its own so it shoudn't need anything beyond basic calls into the core. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-17 14:26 ` Mark Brown @ 2014-10-20 6:10 ` Gyungoh Yoo 2014-10-22 10:27 ` Mark Brown 0 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-20 6:10 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, Oct 17, 2014 at 04:26:05PM +0200, Mark Brown wrote: > On Fri, Oct 17, 2014 at 07:43:09PM +0900, Gyungoh Yoo wrote: > > > Are you talking about simplification using of_regulator_match()? > > This driver has only one regulator. > > Is the API also useful for this driver? > > The thing I'm seeing is that the binding for your device with the > subnode looks very much like the device trees of devices with multiple > regulators. The fact that you only have one regulator is a bit > difference but not that much. It seems like drivers should fit into one > of two patterns: either the regulator is described in the root node for > the device for single purpose devices or there should be a collection of > regulators like is supported with this helper API. Having a collection > with only one node doesn't seem to be a problem in any way. > > > Like reg-fixed-voltage, how about using of_get_fixed_voltage_config()? > > The driver doesn't seem to need any property parsing of its own so it > shoudn't need anything beyond basic calls into the core. Thank you for your kind comments. My understanding is getting better. For my clear understanding: I think the original designed which I wanted to design is similar with arizona-ldo1.c It seems that this is 1st pattern your explained above. Can I ask what is different between arizona-ldo1.c and this sky81452-regulator.c? I think both are designed under root node. Thank you. ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-20 6:10 ` Gyungoh Yoo @ 2014-10-22 10:27 ` Mark Brown 2014-10-23 3:14 ` Gyungoh Yoo 0 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-22 10:27 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 1421 bytes --] On Mon, Oct 20, 2014 at 03:10:24PM +0900, Gyungoh Yoo wrote: > On Fri, Oct 17, 2014 at 04:26:05PM +0200, Mark Brown wrote: > > The thing I'm seeing is that the binding for your device with the > > subnode looks very much like the device trees of devices with multiple > > regulators. The fact that you only have one regulator is a bit > > difference but not that much. It seems like drivers should fit into one > > of two patterns: either the regulator is described in the root node for > > the device for single purpose devices or there should be a collection of > > regulators like is supported with this helper API. Having a collection > > with only one node doesn't seem to be a problem in any way. > Thank you for your kind comments. > My understanding is getting better. > For my clear understanding: > I think the original designed which I wanted to design is similar > with arizona-ldo1.c > It seems that this is 1st pattern your explained above. > Can I ask what is different between arizona-ldo1.c and > this sky81452-regulator.c? > I think both are designed under root node. Were that code being written today I'd probably be asking for it to use a regulators subnode to be consistent with everything else, it's a slightly older driver and sometimes we've not spotted the patterns when they're added, once we get to the point of adding the helpers as we have now things are definitely getting baked in. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-22 10:27 ` Mark Brown @ 2014-10-23 3:14 ` Gyungoh Yoo 2014-10-23 13:01 ` Mark Brown 0 siblings, 1 reply; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-23 3:14 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Wed, Oct 22, 2014 at 11:27:23AM +0100, Mark Brown wrote: > On Mon, Oct 20, 2014 at 03:10:24PM +0900, Gyungoh Yoo wrote: > > On Fri, Oct 17, 2014 at 04:26:05PM +0200, Mark Brown wrote: > > > > The thing I'm seeing is that the binding for your device with the > > > subnode looks very much like the device trees of devices with multiple > > > regulators. The fact that you only have one regulator is a bit > > > difference but not that much. It seems like drivers should fit into one > > > of two patterns: either the regulator is described in the root node for > > > the device for single purpose devices or there should be a collection of > > > regulators like is supported with this helper API. Having a collection > > > with only one node doesn't seem to be a problem in any way. > > > Thank you for your kind comments. > > My understanding is getting better. > > > For my clear understanding: > > I think the original designed which I wanted to design is similar > > with arizona-ldo1.c > > It seems that this is 1st pattern your explained above. > > Can I ask what is different between arizona-ldo1.c and > > this sky81452-regulator.c? > > I think both are designed under root node. > > Were that code being written today I'd probably be asking for it to use > a regulators subnode to be consistent with everything else, it's a > slightly older driver and sometimes we've not spotted the patterns when > they're added, once we get to the point of adding the helpers as we have > now things are definitely getting baked in. I see. Thank you. So, what do you think about DT like below? sky81452@2c { compatible = "skyworks,sky81452"; reg = <0x2c>; backlight { compatible = "skyworks,sky81452-backlight"; name = "pwm-backlight"; enable = <0x3F>; ignore-pwm; }; regulator { compatible = "skyworks,sky81452-regulator"; lout@0 { regulator-name = "LOUT"; regulator-min-microvolt = <4500000>; regulator-max-microvolt = <8000000>; }; }; }; ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-23 3:14 ` Gyungoh Yoo @ 2014-10-23 13:01 ` Mark Brown 2014-10-24 7:54 ` Gyungoh Yoo 0 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-23 13:01 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 655 bytes --] On Thu, Oct 23, 2014 at 12:14:43PM +0900, Gyungoh Yoo wrote: > So, what do you think about DT like below? > sky81452@2c { > compatible = "skyworks,sky81452"; > reg = <0x2c>; > > backlight { > compatible = "skyworks,sky81452-backlight"; > name = "pwm-backlight"; > enable = <0x3F>; > ignore-pwm; > }; > > regulator { > compatible = "skyworks,sky81452-regulator"; Yes, this is good but I still feel that the above compatible is redundant and shouildn't be there. > lout@0 { > regulator-name = "LOUT"; > regulator-min-microvolt = <4500000>; > regulator-max-microvolt = <8000000>; > }; > }; > }; [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-23 13:01 ` Mark Brown @ 2014-10-24 7:54 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-24 7:54 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Thu, Oct 23, 2014 at 02:01:03PM +0100, Mark Brown wrote: > On Thu, Oct 23, 2014 at 12:14:43PM +0900, Gyungoh Yoo wrote: > > > So, what do you think about DT like below? > > > sky81452@2c { > > compatible = "skyworks,sky81452"; > > reg = <0x2c>; > > > > backlight { > > compatible = "skyworks,sky81452-backlight"; > > name = "pwm-backlight"; > > enable = <0x3F>; > > ignore-pwm; > > }; > > > > regulator { > > compatible = "skyworks,sky81452-regulator"; > > Yes, this is good but I still feel that the above compatible is > redundant and shouildn't be there. I see. I will remove compatible string at the next resubmit. > > > lout@0 { > > regulator-name = "LOUT"; > > regulator-min-microvolt = <4500000>; > > regulator-max-microvolt = <8000000>; > > }; > > }; > > }; ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v4 8/8] devicetree: regulator: sky81452: Add compatible string for device binding 2014-10-13 5:47 ` Gyungoh Yoo ` (7 preceding siblings ...) (?) @ 2014-10-13 5:47 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-13 5:47 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v4: Nothing Changes v3: Nothing Changes v2: Added 'compatible' attribute in the driver Documentation/devicetree/bindings/regulator/sky81452-regulator.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt index 882455e..7b9ff18 100644 --- a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -1,6 +1,7 @@ SKY81452 voltage regulator Required properties: +- compatible : Must be "skyworks,sky81452-regulator" - any required generic properties defined in regulator.txt Optional properties: @@ -9,6 +10,7 @@ Optional properties: Example: regulator { + compatible = "skyworks,sky81452-regulator"; /* generic regulator properties */ regulator-name = "touch_en"; regulator-min-microvolt = <4500000>; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 0/8] Add Skyworks SKY81452 device drivers 2014-10-13 5:47 ` Gyungoh Yoo ` (8 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh [not found] ` <1414393369-31583-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh -1 siblings, 2 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. The initial version of sky81452-regulator was applied. Fo this, incremental patches are included. v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (8): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list regulator: sky81452: Add compatible string for device binding devicetree: regulator: sky81452: Add compatible string for device binding .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++ .../bindings/regulator/sky81452-regulator.txt | 10 +- .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 109 +++++++ drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 27 +- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ include/linux/platform_data/sky81452-backlight.h | 47 +++ 15 files changed, 640 insertions(+), 14 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <1414393369-31583-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
[parent not found: <1413179262-27636-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* [RESUBMIT PATCH v5 4/8] devicetree: backlight: Add new SKY81452 backlight binding 2014-10-13 5:47 ` Gyungoh Yoo @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh-Re5JQEeQqe8AvxtiuMwx3w @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 4/8] devicetree: backlight: Add new SKY81452 backlight binding @ 2014-10-27 7:02 ` gyungoh 0 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers 2014-10-27 7:02 ` [RESUBMIT PATCH v5 0/8] Add Skyworks SKY81452 device drivers gyungoh [not found] ` <1414393369-31583-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> @ 2014-10-31 7:08 ` gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh ` (7 more replies) 1 sibling, 8 replies; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. The initial version of sky81452-regulator was applied. Fo this, incremental patches are included. v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (8): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list regulator: sky81452: Add compatible string for device binding devicetree: regulator: sky81452: Add compatible string for device binding .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++ .../bindings/regulator/sky81452-regulator.txt | 10 +- .../devicetree/bindings/vendor-prefixes.txt | 1 + .../video/backlight/sky81452-backlight.txt | 24 ++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 109 +++++++ drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 29 +- drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 345 +++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 ++ include/linux/platform_data/sky81452-backlight.h | 47 +++ 15 files changed, 642 insertions(+), 15 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh @ 2014-10-31 7:08 ` gyungoh [not found] ` <1414739322-12487-2-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 2014-10-31 7:08 ` [RESUBMIT PATCH v6 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh ` (6 subsequent siblings) 7 siblings, 1 reply; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Added new line character at the end of line of dev_err() Changes v5: Move sky81452-backlight.h to include/linux/platform_data Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Changes v2: Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 154 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1456ea7..a54244c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -693,6 +693,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8bd54b1..d9683ea 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..ae1b584 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,109 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-backlight"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices. err=%d\n", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..9d84872 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/platform_data/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1414739322-12487-2-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-31 7:08 ` [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh @ 2014-11-03 17:14 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 17:14 UTC (permalink / raw) To: gyungoh-Re5JQEeQqe8AvxtiuMwx3w Cc: sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Fri, 31 Oct 2014, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Changes v6: > Added new line character at the end of line of dev_err() > > Changes v5: > Move sky81452-backlight.h to include/linux/platform_data > > Changes v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > > Changes v2: > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors > > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 154 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h Code looks fine, but what are its dependencies. I'm assuming nothing; however, did Mark say that something depends on it? If so, what and what are you going to do about it? > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 1456ea7..a54244c 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index 8bd54b1..d9683ea 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o > obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..ae1b584 > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,109 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct mfd_cell cells[2]; > + struct regmap *regmap; > + int ret; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(regmap)) { > + dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap)); > + return PTR_ERR(regmap); > + } > + > + i2c_set_clientdata(client, regmap); > + > + memset(cells, 0, sizeof(cells)); > + cells[0].name = "sky81452-backlight"; > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > + cells[0].platform_data = pdata->bl_pdata; > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > + cells[1].name = "sky81452-regulator"; > + cells[1].platform_data = pdata->regulator_init_data; > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > + > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > + if (ret) > + dev_err(dev, "failed to add child devices. err=%d\n", ret); > + > + return ret; > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452" }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..9d84872 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/platform_data/sky81452-backlight.h> > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-03 17:14 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 17:14 UTC (permalink / raw) To: gyungoh Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Changes v6: > Added new line character at the end of line of dev_err() > > Changes v5: > Move sky81452-backlight.h to include/linux/platform_data > > Changes v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > > Changes v2: > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors > > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 154 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h Code looks fine, but what are its dependencies. I'm assuming nothing; however, did Mark say that something depends on it? If so, what and what are you going to do about it? > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 1456ea7..a54244c 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index 8bd54b1..d9683ea 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o > obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..ae1b584 > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,109 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct mfd_cell cells[2]; > + struct regmap *regmap; > + int ret; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(regmap)) { > + dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap)); > + return PTR_ERR(regmap); > + } > + > + i2c_set_clientdata(client, regmap); > + > + memset(cells, 0, sizeof(cells)); > + cells[0].name = "sky81452-backlight"; > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > + cells[0].platform_data = pdata->bl_pdata; > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > + cells[1].name = "sky81452-regulator"; > + cells[1].platform_data = pdata->regulator_init_data; > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > + > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > + if (ret) > + dev_err(dev, "failed to add child devices. err=%d\n", ret); > + > + return ret; > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452" }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..9d84872 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/platform_data/sky81452-backlight.h> > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-03 17:14 ` Lee Jones @ 2014-11-03 21:28 ` Paul Bolle -1 siblings, 0 replies; 163+ messages in thread From: Paul Bolle @ 2014-11-03 21:28 UTC (permalink / raw) To: Lee Jones Cc: gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: >On Fri, 31 Oct 2014, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > Code looks fine, but what are its dependencies. I'm assuming nothing; > however, did Mark say that something depends on it? That would be REGULATOR_SKY81452. That is currently dangling (since v3.18-rc1) as it depends on the non-existent symbol SKY81452. > If so, what and what are you going to do about it? See 7/8. That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, making it buildable. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index 1456ea7..a54244c 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config MFD_SKY81452 > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-03 21:28 ` Paul Bolle 0 siblings, 0 replies; 163+ messages in thread From: Paul Bolle @ 2014-11-03 21:28 UTC (permalink / raw) To: Lee Jones Cc: gyungoh, sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: >On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > Code looks fine, but what are its dependencies. I'm assuming nothing; > however, did Mark say that something depends on it? That would be REGULATOR_SKY81452. That is currently dangling (since v3.18-rc1) as it depends on the non-existent symbol SKY81452. > If so, what and what are you going to do about it? See 7/8. That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, making it buildable. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index 1456ea7..a54244c 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config MFD_SKY81452 > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y Paul Bolle ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-03 21:28 ` Paul Bolle @ 2014-11-03 22:30 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 22:30 UTC (permalink / raw) To: Paul Bolle Cc: gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Mon, 03 Nov 2014, Paul Bolle wrote: > On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: > >On Fri, 31 Oct 2014, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > > Code looks fine, but what are its dependencies. I'm assuming nothing; > > however, did Mark say that something depends on it? > > That would be REGULATOR_SKY81452. That is currently dangling (since > v3.18-rc1) as it depends on the non-existent symbol SKY81452. > > > If so, what and what are you going to do about it? > > See 7/8. That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, > making it buildable. Okay, so I can take this patch with no fall-out then. > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > > index 1456ea7..a54244c 100644 > > > --- a/drivers/mfd/Kconfig > > > +++ b/drivers/mfd/Kconfig > > > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > > > lines on the SM501. The platform data is used to supply the > > > base number for the first GPIO line to register. > > > > > > +config MFD_SKY81452 > > > + tristate "Skyworks Solutions SKY81452" > > > + select MFD_CORE > > > + select REGMAP_I2C > > > + depends on I2C > > > + help > > > + This is the core driver for the Skyworks SKY81452 backlight and > > > + voltage regulator device. > > > + > > > + This driver can also be built as a module. If so, the module > > > + will be called sky81452. > > > + > > > config MFD_SMSC > > > bool "SMSC ECE1099 series chips" > > > depends on I2C=y > > > Paul Bolle > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-03 22:30 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 22:30 UTC (permalink / raw) To: Paul Bolle Cc: gyungoh, sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, 03 Nov 2014, Paul Bolle wrote: > On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: > >On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > > Code looks fine, but what are its dependencies. I'm assuming nothing; > > however, did Mark say that something depends on it? > > That would be REGULATOR_SKY81452. That is currently dangling (since > v3.18-rc1) as it depends on the non-existent symbol SKY81452. > > > If so, what and what are you going to do about it? > > See 7/8. That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, > making it buildable. Okay, so I can take this patch with no fall-out then. > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > > index 1456ea7..a54244c 100644 > > > --- a/drivers/mfd/Kconfig > > > +++ b/drivers/mfd/Kconfig > > > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > > > lines on the SM501. The platform data is used to supply the > > > base number for the first GPIO line to register. > > > > > > +config MFD_SKY81452 > > > + tristate "Skyworks Solutions SKY81452" > > > + select MFD_CORE > > > + select REGMAP_I2C > > > + depends on I2C > > > + help > > > + This is the core driver for the Skyworks SKY81452 backlight and > > > + voltage regulator device. > > > + > > > + This driver can also be built as a module. If so, the module > > > + will be called sky81452. > > > + > > > config MFD_SMSC > > > bool "SMSC ECE1099 series chips" > > > depends on I2C=y > > > Paul Bolle > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-03 22:30 ` Lee Jones @ 2014-11-04 9:05 ` Paul Bolle -1 siblings, 0 replies; 163+ messages in thread From: Paul Bolle @ 2014-11-04 9:05 UTC (permalink / raw) To: Lee Jones Cc: gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Mon, 2014-11-03 at 22:30 +0000, Lee Jones wrote: > On Mon, 03 Nov 2014, Paul Bolle wrote: > > > On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: > > That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, > > making it buildable. > > Okay, so I can take this patch with no fall-out then. Nothing will break. But I think Mark prefers the dependency rename, now done in 7/8, to be done as part of this patch. Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-04 9:05 ` Paul Bolle 0 siblings, 0 replies; 163+ messages in thread From: Paul Bolle @ 2014-11-04 9:05 UTC (permalink / raw) To: Lee Jones Cc: gyungoh, sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, 2014-11-03 at 22:30 +0000, Lee Jones wrote: > On Mon, 03 Nov 2014, Paul Bolle wrote: > > > On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: > > That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, > > making it buildable. > > Okay, so I can take this patch with no fall-out then. Nothing will break. But I think Mark prefers the dependency rename, now done in 7/8, to be done as part of this patch. Paul Bolle ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-04 9:05 ` Paul Bolle @ 2014-11-04 9:16 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 9:16 UTC (permalink / raw) To: Paul Bolle Cc: gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Tue, 04 Nov 2014, Paul Bolle wrote: > On Mon, 2014-11-03 at 22:30 +0000, Lee Jones wrote: > > On Mon, 03 Nov 2014, Paul Bolle wrote: > > > > > On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: > > > That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, > > > making it buildable. > > > > Okay, so I can take this patch with no fall-out then. > > Nothing will break. But I think Mark prefers the dependency rename, now > done in 7/8, to be done as part of this patch. I don't agree. The rename should be taken independantly by Mark. The regulator driver won't build until they match anyway, so there's no hard dependency. Unless someone can give me a really good reason to revert it, I'm applying this driver now. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-04 9:16 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 9:16 UTC (permalink / raw) To: Paul Bolle Cc: gyungoh, sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, 04 Nov 2014, Paul Bolle wrote: > On Mon, 2014-11-03 at 22:30 +0000, Lee Jones wrote: > > On Mon, 03 Nov 2014, Paul Bolle wrote: > > > > > On Mon, 2014-11-03 at 17:14 +0000, Lee Jones wrote: > > > That patch makes REGULATOR_SKY81452 depend on MFD_SKY81452, > > > making it buildable. > > > > Okay, so I can take this patch with no fall-out then. > > Nothing will break. But I think Mark prefers the dependency rename, now > done in 7/8, to be done as part of this patch. I don't agree. The rename should be taken independantly by Mark. The regulator driver won't build until they match anyway, so there's no hard dependency. Unless someone can give me a really good reason to revert it, I'm applying this driver now. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-04 9:16 ` Lee Jones @ 2014-11-04 11:38 ` Mark Brown -1 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 11:38 UTC (permalink / raw) To: Lee Jones Cc: Paul Bolle, gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A [-- Attachment #1: Type: text/plain, Size: 583 bytes --] On Tue, Nov 04, 2014 at 09:16:09AM +0000, Lee Jones wrote: > On Tue, 04 Nov 2014, Paul Bolle wrote: > > Nothing will break. But I think Mark prefers the dependency rename, now > > done in 7/8, to be done as part of this patch. > I don't agree. The rename should be taken independantly by Mark. > The regulator driver won't build until they match anyway, so there's > no hard dependency. Unless someone can give me a really good reason > to revert it, I'm applying this driver now. The important thing is that the dependency rename isn't silently thrown into an unrelated patch. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-04 11:38 ` Mark Brown 0 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 11:38 UTC (permalink / raw) To: Lee Jones Cc: Paul Bolle, gyungoh, sameo, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 583 bytes --] On Tue, Nov 04, 2014 at 09:16:09AM +0000, Lee Jones wrote: > On Tue, 04 Nov 2014, Paul Bolle wrote: > > Nothing will break. But I think Mark prefers the dependency rename, now > > done in 7/8, to be done as part of this patch. > I don't agree. The rename should be taken independantly by Mark. > The regulator driver won't build until they match anyway, so there's > no hard dependency. Unless someone can give me a really good reason > to revert it, I'm applying this driver now. The important thing is that the dependency rename isn't silently thrown into an unrelated patch. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20141104113833.GI3815-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-04 11:38 ` Mark Brown @ 2014-11-04 14:35 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 14:35 UTC (permalink / raw) To: Mark Brown Cc: Paul Bolle, gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Tue, 04 Nov 2014, Mark Brown wrote: > On Tue, Nov 04, 2014 at 09:16:09AM +0000, Lee Jones wrote: > > On Tue, 04 Nov 2014, Paul Bolle wrote: > > > > Nothing will break. But I think Mark prefers the dependency rename, now > > > done in 7/8, to be done as part of this patch. > > > I don't agree. The rename should be taken independantly by Mark. > > The regulator driver won't build until they match anyway, so there's > > no hard dependency. Unless someone can give me a really good reason > > to revert it, I'm applying this driver now. > > The important thing is that the dependency rename isn't silently thrown > into an unrelated patch. That I agree with. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-04 14:35 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 14:35 UTC (permalink / raw) To: Mark Brown Cc: Paul Bolle, gyungoh, sameo, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, 04 Nov 2014, Mark Brown wrote: > On Tue, Nov 04, 2014 at 09:16:09AM +0000, Lee Jones wrote: > > On Tue, 04 Nov 2014, Paul Bolle wrote: > > > > Nothing will break. But I think Mark prefers the dependency rename, now > > > done in 7/8, to be done as part of this patch. > > > I don't agree. The rename should be taken independantly by Mark. > > The regulator driver won't build until they match anyway, so there's > > no hard dependency. Unless someone can give me a really good reason > > to revert it, I'm applying this driver now. > > The important thing is that the dependency rename isn't silently thrown > into an unrelated patch. That I agree with. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-11-03 17:14 ` Lee Jones (?) (?) @ 2014-11-04 10:54 ` Lee Jones -1 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 10:54 UTC (permalink / raw) To: gyungoh Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, 03 Nov 2014, Lee Jones wrote: > On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > --- > > Changes v6: > > Added new line character at the end of line of dev_err() > > > > Changes v5: > > Move sky81452-backlight.h to include/linux/platform_data > > > > Changes v4: > > Removed MODULE_VERSION() > > Modified license to GPLv2 > > > > Changes v3: > > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > > Assigned mfd_cell.of_compatible for binding device node > > Modified error messages > > > > Changes v2: > > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > > Added message for exception or errors > > > > drivers/mfd/Kconfig | 12 +++++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 +++++++++++++ > > 4 files changed, 154 insertions(+) > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 include/linux/mfd/sky81452.h > > Code looks fine, but what are its dependencies. I'm assuming nothing; > however, did Mark say that something depends on it? If so, what and > what are you going to do about it? Okay, so this driver does in fact have a dependancy on the Backlight driver. Until I get a Backlight Ack from either Brian and/or Jingoo, there is nothing I can do. Patch unapplied. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index 1456ea7..a54244c 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > > lines on the SM501. The platform data is used to supply the > > base number for the first GPIO line to register. > > > > +config MFD_SKY81452 > > + tristate "Skyworks Solutions SKY81452" > > + select MFD_CORE > > + select REGMAP_I2C > > + depends on I2C > > + help > > + This is the core driver for the Skyworks SKY81452 backlight and > > + voltage regulator device. > > + > > + This driver can also be built as a module. If so, the module > > + will be called sky81452. > > + > > config MFD_SMSC > > bool "SMSC ECE1099 series chips" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index 8bd54b1..d9683ea 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o > > obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o > > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > > new file mode 100644 > > index 0000000..ae1b584 > > --- /dev/null > > +++ b/drivers/mfd/sky81452.c > > @@ -0,0 +1,109 @@ > > +/* > > + * sky81452.c SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/init.h> > > +#include <linux/err.h> > > +#include <linux/slab.h> > > +#include <linux/i2c.h> > > +#include <linux/regmap.h> > > +#include <linux/mfd/core.h> > > +#include <linux/mfd/sky81452.h> > > + > > +static const struct regmap_config sky81452_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int sky81452_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > +{ > > + struct device *dev = &client->dev; > > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > > + struct mfd_cell cells[2]; > > + struct regmap *regmap; > > + int ret; > > + > > + if (!pdata) { > > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > > + if (!pdata) > > + return -ENOMEM; > > + } > > + > > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > > + if (IS_ERR(regmap)) { > > + dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap)); > > + return PTR_ERR(regmap); > > + } > > + > > + i2c_set_clientdata(client, regmap); > > + > > + memset(cells, 0, sizeof(cells)); > > + cells[0].name = "sky81452-backlight"; > > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > > + cells[0].platform_data = pdata->bl_pdata; > > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > > + cells[1].name = "sky81452-regulator"; > > + cells[1].platform_data = pdata->regulator_init_data; > > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > > + > > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > > + if (ret) > > + dev_err(dev, "failed to add child devices. err=%d\n", ret); > > + > > + return ret; > > +} > > + > > +static int sky81452_remove(struct i2c_client *client) > > +{ > > + mfd_remove_devices(&client->dev); > > + return 0; > > +} > > + > > +static const struct i2c_device_id sky81452_ids[] = { > > + { "sky81452" }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > > + > > +#ifdef CONFIG_OF > > +static const struct of_device_id sky81452_of_match[] = { > > + { .compatible = "skyworks,sky81452", }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > > +#endif > > + > > +static struct i2c_driver sky81452_driver = { > > + .driver = { > > + .name = "sky81452", > > + .of_match_table = of_match_ptr(sky81452_of_match), > > + }, > > + .probe = sky81452_probe, > > + .remove = sky81452_remove, > > + .id_table = sky81452_ids, > > +}; > > + > > +module_i2c_driver(sky81452_driver); > > + > > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > > +MODULE_LICENSE("GPL v2"); > > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > > new file mode 100644 > > index 0000000..9d84872 > > --- /dev/null > > +++ b/include/linux/mfd/sky81452.h > > @@ -0,0 +1,32 @@ > > +/* > > + * sky81452.h SKY81452 MFD driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License as published by the > > + * Free Software Foundation; either version 2, or (at your option) any > > + * later version. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > > + */ > > + > > +#ifndef _SKY81452_H > > +#define _SKY81452_H > > + > > +#include <linux/platform_data/sky81452-backlight.h> > > +#include <linux/regulator/machine.h> > > + > > +struct sky81452_platform_data { > > + struct sky81452_bl_platform_data *bl_pdata; > > + struct regulator_init_data *regulator_init_data; > > +}; > > + > > +#endif > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-31 7:08 ` [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh @ 2014-11-04 9:17 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 9:17 UTC (permalink / raw) To: gyungoh-Re5JQEeQqe8AvxtiuMwx3w Cc: sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Fri, 31 Oct 2014, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Changes v6: > Added new line character at the end of line of dev_err() > > Changes v5: > Move sky81452-backlight.h to include/linux/platform_data > > Changes v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > > Changes v2: > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors > > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 154 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h Applied, thanks. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 1456ea7..a54244c 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index 8bd54b1..d9683ea 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o > obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..ae1b584 > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,109 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct mfd_cell cells[2]; > + struct regmap *regmap; > + int ret; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(regmap)) { > + dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap)); > + return PTR_ERR(regmap); > + } > + > + i2c_set_clientdata(client, regmap); > + > + memset(cells, 0, sizeof(cells)); > + cells[0].name = "sky81452-backlight"; > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > + cells[0].platform_data = pdata->bl_pdata; > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > + cells[1].name = "sky81452-regulator"; > + cells[1].platform_data = pdata->regulator_init_data; > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > + > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > + if (ret) > + dev_err(dev, "failed to add child devices. err=%d\n", ret); > + > + return ret; > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452" }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..9d84872 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/platform_data/sky81452-backlight.h> > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver @ 2014-11-04 9:17 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-04 9:17 UTC (permalink / raw) To: gyungoh Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Changes v6: > Added new line character at the end of line of dev_err() > > Changes v5: > Move sky81452-backlight.h to include/linux/platform_data > > Changes v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > > Changes v2: > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors > > drivers/mfd/Kconfig | 12 +++++ > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 +++++++++++++ > 4 files changed, 154 insertions(+) > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 include/linux/mfd/sky81452.h Applied, thanks. > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 1456ea7..a54244c 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -693,6 +693,18 @@ config MFD_SM501_GPIO > lines on the SM501. The platform data is used to supply the > base number for the first GPIO line to register. > > +config MFD_SKY81452 > + tristate "Skyworks Solutions SKY81452" > + select MFD_CORE > + select REGMAP_I2C > + depends on I2C > + help > + This is the core driver for the Skyworks SKY81452 backlight and > + voltage regulator device. > + > + This driver can also be built as a module. If so, the module > + will be called sky81452. > + > config MFD_SMSC > bool "SMSC ECE1099 series chips" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index 8bd54b1..d9683ea 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o > obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o > +obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o > obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o > diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c > new file mode 100644 > index 0000000..ae1b584 > --- /dev/null > +++ b/drivers/mfd/sky81452.c > @@ -0,0 +1,109 @@ > +/* > + * sky81452.c SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/err.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/sky81452.h> > + > +static const struct regmap_config sky81452_config = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +static int sky81452_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); > + struct mfd_cell cells[2]; > + struct regmap *regmap; > + int ret; > + > + if (!pdata) { > + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } > + > + regmap = devm_regmap_init_i2c(client, &sky81452_config); > + if (IS_ERR(regmap)) { > + dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap)); > + return PTR_ERR(regmap); > + } > + > + i2c_set_clientdata(client, regmap); > + > + memset(cells, 0, sizeof(cells)); > + cells[0].name = "sky81452-backlight"; > + cells[0].of_compatible = "skyworks,sky81452-backlight"; > + cells[0].platform_data = pdata->bl_pdata; > + cells[0].pdata_size = sizeof(*pdata->bl_pdata); > + cells[1].name = "sky81452-regulator"; > + cells[1].platform_data = pdata->regulator_init_data; > + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); > + > + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); > + if (ret) > + dev_err(dev, "failed to add child devices. err=%d\n", ret); > + > + return ret; > +} > + > +static int sky81452_remove(struct i2c_client *client) > +{ > + mfd_remove_devices(&client->dev); > + return 0; > +} > + > +static const struct i2c_device_id sky81452_ids[] = { > + { "sky81452" }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sky81452_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id sky81452_of_match[] = { > + { .compatible = "skyworks,sky81452", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, sky81452_of_match); > +#endif > + > +static struct i2c_driver sky81452_driver = { > + .driver = { > + .name = "sky81452", > + .of_match_table = of_match_ptr(sky81452_of_match), > + }, > + .probe = sky81452_probe, > + .remove = sky81452_remove, > + .id_table = sky81452_ids, > +}; > + > +module_i2c_driver(sky81452_driver); > + > +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); > +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h > new file mode 100644 > index 0000000..9d84872 > --- /dev/null > +++ b/include/linux/mfd/sky81452.h > @@ -0,0 +1,32 @@ > +/* > + * sky81452.h SKY81452 MFD driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef _SKY81452_H > +#define _SKY81452_H > + > +#include <linux/platform_data/sky81452-backlight.h> > +#include <linux/regulator/machine.h> > + > +struct sky81452_platform_data { > + struct sky81452_bl_platform_data *bl_pdata; > + struct regulator_init_data *regulator_init_data; > +}; > + > +#endif -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 2/8] backlight: Add support Skyworks SKY81452 backlight driver 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh @ 2014-10-31 7:08 ` gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh ` (5 subsequent siblings) 7 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Added new line character at the end of line of dev_err() Changes v5: Move sky81452-backlight.h to include/linux/platform_data Changes v4: Reordering header files for readability Removed calling to backlight_device_unregister() Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified DBG messages Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 345 +++++++++++++++++++++++ include/linux/platform_data/sky81452-backlight.h | 47 +++ 4 files changed, 403 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/platform_data/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..cec61e9 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,345 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/backlight.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/platform_data/sky81452-backlight.h> +#include <linux/slab.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else { + strcpy(buf, "none\n"); + } + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found.\n"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO. err=%d\n", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize. err=%d\n", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute. err=%d\n", ret); + return ret; + } + + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/platform_data/sky81452-backlight.h b/include/linux/platform_data/sky81452-backlight.h new file mode 100644 index 0000000..b3635f9 --- /dev/null +++ b/include/linux/platform_data/sky81452-backlight.h @@ -0,0 +1,47 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_BACKLIGHT_H +#define _SKY81452_BACKLIGHT_H + +/** + * struct sky81452_platform_data + * @name: backlight driver name. + If it is not defined, default name is lcd-backlight. + * @gpio_enable:GPIO number which control EN pin + * @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6. + * @ignore_pwm: true if DPWMI should be ignored. + * @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode. + * @phase_shift:true is phase shift mode. + * @short_detecion_threshold: It should be one of 4, 5, 6 and 7V. + * @boost_current_limit: It should be one of 2300, 2750mA. + */ +struct sky81452_bl_platform_data { + const char *name; + int gpio_enable; + unsigned int enable; + bool ignore_pwm; + bool dpwm_mode; + bool phase_shift; + unsigned int short_detection_threshold; + unsigned int boost_current_limit; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh @ 2014-10-31 7:08 ` gyungoh 2014-10-31 16:36 ` Mark Brown [not found] ` <1414739322-12487-4-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 2014-10-31 7:08 ` [RESUBMIT PATCH v6 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc gyungoh ` (4 subsequent siblings) 7 siblings, 2 replies; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Nothing Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..4b82a73 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,33 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" +- reg : I2C slave address + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2c { + compatible = "skyworks,sky81452"; + reg = <0x2c>; + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; + + regulator { + lout { + regulator-name = "sky81452-lout"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; + }; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh @ 2014-10-31 16:36 ` Mark Brown [not found] ` <1414739322-12487-4-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 1 sibling, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-10-31 16:36 UTC (permalink / raw) To: gyungoh Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 224 bytes --] On Fri, Oct 31, 2014 at 04:08:37PM +0900, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> Reviwed-by: Mark Brown <broonie@kernel.org> [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <1414739322-12487-4-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh @ 2014-11-03 17:06 ` Lee Jones [not found] ` <1414739322-12487-4-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> 1 sibling, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 17:06 UTC (permalink / raw) To: gyungoh-Re5JQEeQqe8AvxtiuMwx3w Cc: sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Fri, 31 Oct 2014, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Changes v6: > Nothing > > Changes v5: > Changed DT for regulator : 'lout' node should be defined under 'regulator' > Removed compatible string from sky81452-regulator driver > > Changes v4: > Nothing > > Changes v3: > Nothing > > Changes v2: > Added reg attribute for I2C slave address > > Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++++++++++++++++++++++ > 1 file changed, 33 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt For my own information: Acked-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..4b82a73 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,33 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > +- reg : I2C slave address > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2c { > + compatible = "skyworks,sky81452"; > + reg = <0x2c>; > + > + backlight { > + compatible = "skyworks,sky81452-backlight"; > + name = "pwm-backlight"; > + enable = <0x3F>; > + ignore-pwm; > + }; > + > + regulator { > + lout { > + regulator-name = "sky81452-lout"; > + regulator-min-microvolt = <4500000>; > + regulator-max-microvolt = <8000000>; > + }; > + }; > + }; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding @ 2014-11-03 17:06 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 17:06 UTC (permalink / raw) To: gyungoh Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Changes v6: > Nothing > > Changes v5: > Changed DT for regulator : 'lout' node should be defined under 'regulator' > Removed compatible string from sky81452-regulator driver > > Changes v4: > Nothing > > Changes v3: > Nothing > > Changes v2: > Added reg attribute for I2C slave address > > Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++++++++++++++++++++++ > 1 file changed, 33 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt For my own information: Acked-by: Lee Jones <lee.jones@linaro.org> > diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt > new file mode 100644 > index 0000000..4b82a73 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt > @@ -0,0 +1,33 @@ > +SKY81452 bindings > + > +Required properties: > +- compatible : Must be "skyworks,sky81452" > +- reg : I2C slave address > + > +Required child nodes: > +- backlight : container node for backlight following the binding > + in video/backlight/sky81452-backlight.txt > +- regulator : container node for regulators following the binding > + in regulator/sky81452-regulator.txt > + > +Example: > + > + sky81452@2c { > + compatible = "skyworks,sky81452"; > + reg = <0x2c>; > + > + backlight { > + compatible = "skyworks,sky81452-backlight"; > + name = "pwm-backlight"; > + enable = <0x3F>; > + ignore-pwm; > + }; > + > + regulator { > + lout { > + regulator-name = "sky81452-lout"; > + regulator-min-microvolt = <4500000>; > + regulator-max-microvolt = <8000000>; > + }; > + }; > + }; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh ` (2 preceding siblings ...) 2014-10-31 7:08 ` [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh @ 2014-10-31 7:08 ` gyungoh [not found] ` <1414739322-12487-6-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> [not found] ` <1414739322-12487-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> ` (3 subsequent siblings) 7 siblings, 1 reply; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 723999d..03e7730 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -137,6 +137,7 @@ sii Seiko Instruments, Inc. silergy Silergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
[parent not found: <1414739322-12487-6-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. 2014-10-31 7:08 ` [RESUBMIT PATCH v6 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc gyungoh @ 2014-11-03 17:07 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 17:07 UTC (permalink / raw) To: gyungoh-Re5JQEeQqe8AvxtiuMwx3w Cc: sameo-VuQAYsv1563Yd54FQh9/CA, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Fri, 31 Oct 2014, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > --- > Changes v6: > Nothing > > Changes v5: > Nothing > > Changes v4: > Nothing > > Changes v3: > Nothing > > Changes v2: > Added vendor prefix for Skyworks Solutions, Inc. > > Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + > 1 file changed, 1 insertion(+) Acked-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > index 723999d..03e7730 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -137,6 +137,7 @@ sii Seiko Instruments, Inc. > silergy Silergy Corp. > sirf SiRF Technology, Inc. > sitronix Sitronix Technology Corporation > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > solidrun SolidRun -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. @ 2014-11-03 17:07 ` Lee Jones 0 siblings, 0 replies; 163+ messages in thread From: Lee Jones @ 2014-11-03 17:07 UTC (permalink / raw) To: gyungoh Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, 31 Oct 2014, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Changes v6: > Nothing > > Changes v5: > Nothing > > Changes v4: > Nothing > > Changes v3: > Nothing > > Changes v2: > Added vendor prefix for Skyworks Solutions, Inc. > > Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + > 1 file changed, 1 insertion(+) Acked-by: Lee Jones <lee.jones@linaro.org> > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > index 723999d..03e7730 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > @@ -137,6 +137,7 @@ sii Seiko Instruments, Inc. > silergy Silergy Corp. > sirf SiRF Technology, Inc. > sitronix Sitronix Technology Corporation > +skyworks Skyworks Solutions, Inc. > smsc Standard Microsystems Corporation > snps Synopsys, Inc. > solidrun SolidRun -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <1414739322-12487-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>]
* [RESUBMIT PATCH v6 4/8] devicetree: backlight: Add new SKY81452 backlight binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh @ 2014-10-31 7:08 ` gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh ` (6 subsequent siblings) 7 siblings, 0 replies; 163+ messages in thread From: gyungoh-Re5JQEeQqe8AvxtiuMwx3w @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 4/8] devicetree: backlight: Add new SKY81452 backlight binding @ 2014-10-31 7:08 ` gyungoh 0 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address .../video/backlight/sky81452-backlight.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..2c2d947 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt @@ -0,0 +1,24 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpio-enable : GPIO to use to EN pin. +- enable : Enable mask for current sink channel 1 to 6. +- ignore-pwm : Ignore both PWM input +- dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming mode +- phase-shift : Enable phase shift mode +- ovp-level : Over-voltage protection level. Should be between 14 or 28V. +- short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- boost-current-limit : It should be one of 800, 1100 and 1500mA. + +Example: + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh @ 2014-10-31 7:08 ` gyungoh 2014-10-31 7:08 ` [RESUBMIT PATCH v6 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh ` (6 subsequent siblings) 7 siblings, 0 replies; 163+ messages in thread From: gyungoh-Re5JQEeQqe8AvxtiuMwx3w @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> --- Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list @ 2014-10-31 7:08 ` gyungoh 0 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh ` (4 preceding siblings ...) [not found] ` <1414739322-12487-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> @ 2014-10-31 7:08 ` gyungoh 2014-10-31 16:44 ` Mark Brown 2014-10-31 7:08 ` [RESUBMIT PATCH v6 8/8] devicetree: " gyungoh 2014-11-11 11:10 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers Lee Jones 7 siblings, 1 reply; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Added new line character at the end of line of dev_err() Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string Modified to return EINVAL when of_node is NULL Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified to return ENODATA when of_node is NULL Modified the messages in error cases Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors. drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 29 +++++++++++++++++++---------- 2 files changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 55d7b7b..fe84bd4 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -547,7 +547,7 @@ config REGULATOR_S5M8767 config REGULATOR_SKY81452 tristate "Skyworks Solutions SKY81452 voltage regulator" - depends on SKY81452 + depends on MFD_SKY81452 help This driver supports Skyworks SKY81452 voltage output regulator via I2C bus. SKY81452 has one voltage linear regulator can be diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 97aff0c..23a3bd6 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -65,21 +65,29 @@ static const struct regulator_desc sky81452_reg = { }; #ifdef CONFIG_OF +static struct of_regulator_match sky81452_match = { + .name = "lout" +}; + static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) { - struct regulator_init_data *init_data; struct device_node *np; + int ret; np = of_get_child_by_name(dev->parent->of_node, "regulator"); - if (unlikely(!np)) { - dev_err(dev, "regulator node not found"); - return NULL; + if (!np) { + dev_err(dev, "regulator node not found.\n"); + return ERR_PTR(-EINVAL); } - init_data = of_get_regulator_init_data(dev, np); - + ret = of_regulator_match(dev, np, &sky81452_match, 1); of_node_put(np); - return init_data; + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "Error parsing init data. err=%d\n", ret); + return ERR_PTR(ret); + } + + return &sky81452_match.init_data; } #else static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) @@ -107,8 +115,10 @@ static int sky81452_reg_probe(struct platform_device *pdev) config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); - if (IS_ERR(rdev)) + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(rdev)); return PTR_ERR(rdev); + } platform_set_drvdata(pdev, rdev); @@ -126,5 +136,4 @@ module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); -MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL v2"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding gyungoh @ 2014-10-31 16:44 ` Mark Brown [not found] ` <20141031164418.GC18557-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> 0 siblings, 1 reply; 163+ messages in thread From: Mark Brown @ 2014-10-31 16:44 UTC (permalink / raw) To: gyungoh Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 538 bytes --] On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> This doesn't apply against current code and depends on the MFD symbol rename - can you please check what's going on here? It would make sense to split the Kconfig symbol rename into a separate patch to ease merging, it doesn't seem obviously related to the driver change and should probably be in the same patch as the MFD symbol rename for bisetion. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20141031164418.GC18557-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-31 16:44 ` Mark Brown @ 2014-11-03 21:45 ` Paul Bolle 0 siblings, 0 replies; 163+ messages in thread From: Paul Bolle @ 2014-11-03 21:45 UTC (permalink / raw) To: Mark Brown Cc: gyungoh-Re5JQEeQqe8AvxtiuMwx3w, sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Fri, 2014-10-31 at 16:44 +0000, Mark Brown wrote: > On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > This doesn't apply against current code and depends on the MFD symbol > rename - can you please check what's going on here? > > It would make sense to split the Kconfig symbol rename into a separate > patch to ease merging, The relicensing (from GPL to GPL v2, thus dropping the "or later" provision) is odd too. The header still uses GPL v2 or later, doesn't it? Anyhow, that could be a separate patch too. > it doesn't seem obviously related to the driver > change and should probably be in the same patch as the MFD symbol rename > for bisetion. I don't think there will be bisection problems (in mainline). Currently this driver depends on SKY81452. But that symbol doesn't exist. Only after both 1/8 and this patch will this driver become buildable, for the first time. So it's not that this driver was buildable, became unbuildable in 1/8 and buildable again in this patch. (I don't think it's much of a problem that the regulator driver got merged, in v3.18-rc1, before the mfd driver on which it depends. Avoiding that temporarily problem appears to be more trouble than it's worth.) Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-03 21:45 ` Paul Bolle 0 siblings, 0 replies; 163+ messages in thread From: Paul Bolle @ 2014-11-03 21:45 UTC (permalink / raw) To: Mark Brown Cc: gyungoh, sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, 2014-10-31 at 16:44 +0000, Mark Brown wrote: > On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh@gmail.com wrote: > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > This doesn't apply against current code and depends on the MFD symbol > rename - can you please check what's going on here? > > It would make sense to split the Kconfig symbol rename into a separate > patch to ease merging, The relicensing (from GPL to GPL v2, thus dropping the "or later" provision) is odd too. The header still uses GPL v2 or later, doesn't it? Anyhow, that could be a separate patch too. > it doesn't seem obviously related to the driver > change and should probably be in the same patch as the MFD symbol rename > for bisetion. I don't think there will be bisection problems (in mainline). Currently this driver depends on SKY81452. But that symbol doesn't exist. Only after both 1/8 and this patch will this driver become buildable, for the first time. So it's not that this driver was buildable, became unbuildable in 1/8 and buildable again in this patch. (I don't think it's much of a problem that the regulator driver got merged, in v3.18-rc1, before the mfd driver on which it depends. Avoiding that temporarily problem appears to be more trouble than it's worth.) Paul Bolle ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-11-03 21:45 ` Paul Bolle (?) @ 2014-11-04 0:55 ` Mark Brown -1 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 0:55 UTC (permalink / raw) To: Paul Bolle Cc: gyungoh, sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 1042 bytes --] On Mon, Nov 03, 2014 at 10:45:39PM +0100, Paul Bolle wrote: > On Fri, 2014-10-31 at 16:44 +0000, Mark Brown wrote: > > it doesn't seem obviously related to the driver > > change and should probably be in the same patch as the MFD symbol rename > > for bisetion. > I don't think there will be bisection problems (in mainline). Currently > this driver depends on SKY81452. But that symbol doesn't exist. Only > after both 1/8 and this patch will this driver become buildable, for the > first time. So it's not that this driver was buildable, became > unbuildable in 1/8 and buildable again in this patch. > (I don't think it's much of a problem that the regulator driver got > merged, in v3.18-rc1, before the mfd driver on which it depends. > Avoiding that temporarily problem appears to be more trouble than it's > worth.) The symbol rename should not be randomly shoved in with another patch, and if the MFD still hasn't been merged then it probably makes sense to do the rename as part of merging the MFD so it's clear what's going on. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-11-03 21:45 ` Paul Bolle @ 2014-11-06 4:45 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-06 4:45 UTC (permalink / raw) To: Paul Bolle Cc: Mark Brown, sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Mon, Nov 03, 2014 at 10:45:39PM +0100, Paul Bolle wrote: > On Fri, 2014-10-31 at 16:44 +0000, Mark Brown wrote: > > On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > > > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > > This doesn't apply against current code and depends on the MFD symbol > > rename - can you please check what's going on here? > > > > It would make sense to split the Kconfig symbol rename into a separate > > patch to ease merging, > > The relicensing (from GPL to GPL v2, thus dropping the "or later" > provision) is odd too. The header still uses GPL v2 or later, doesn't > it? Anyhow, that could be a separate patch too. I will modify the licensing text and resubmit it. Thank you for your comment. > > > it doesn't seem obviously related to the driver > > change and should probably be in the same patch as the MFD symbol rename > > for bisetion. > > I don't think there will be bisection problems (in mainline). Currently > this driver depends on SKY81452. But that symbol doesn't exist. Only > after both 1/8 and this patch will this driver become buildable, for the > first time. So it's not that this driver was buildable, became > unbuildable in 1/8 and buildable again in this patch. > > (I don't think it's much of a problem that the regulator driver got > merged, in v3.18-rc1, before the mfd driver on which it depends. > Avoiding that temporarily problem appears to be more trouble than it's > worth.) > > > Paul Bolle > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-06 4:45 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-06 4:45 UTC (permalink / raw) To: Paul Bolle Cc: Mark Brown, sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, Nov 03, 2014 at 10:45:39PM +0100, Paul Bolle wrote: > On Fri, 2014-10-31 at 16:44 +0000, Mark Brown wrote: > > On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh@gmail.com wrote: > > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > This doesn't apply against current code and depends on the MFD symbol > > rename - can you please check what's going on here? > > > > It would make sense to split the Kconfig symbol rename into a separate > > patch to ease merging, > > The relicensing (from GPL to GPL v2, thus dropping the "or later" > provision) is odd too. The header still uses GPL v2 or later, doesn't > it? Anyhow, that could be a separate patch too. I will modify the licensing text and resubmit it. Thank you for your comment. > > > it doesn't seem obviously related to the driver > > change and should probably be in the same patch as the MFD symbol rename > > for bisetion. > > I don't think there will be bisection problems (in mainline). Currently > this driver depends on SKY81452. But that symbol doesn't exist. Only > after both 1/8 and this patch will this driver become buildable, for the > first time. So it's not that this driver was buildable, became > unbuildable in 1/8 and buildable again in this patch. > > (I don't think it's much of a problem that the regulator driver got > merged, in v3.18-rc1, before the mfd driver on which it depends. > Avoiding that temporarily problem appears to be more trouble than it's > worth.) > > > Paul Bolle > ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-31 16:44 ` Mark Brown @ 2014-11-04 0:43 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-04 0:43 UTC (permalink / raw) To: Mark Brown Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Fri, Oct 31, 2014 at 04:44:18PM +0000, Mark Brown wrote: > On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote: > > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > > > Signed-off-by: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org> > > This doesn't apply against current code and depends on the MFD symbol > rename - can you please check what's going on here? Are you talking about 'sky81452-regulator'? I am sorry I don't understand. Can you explain in more detail? > > It would make sense to split the Kconfig symbol rename into a separate > patch to ease merging, it doesn't seem obviously related to the driver > change and should probably be in the same patch as the MFD symbol rename > for bisetion. becuase the symbol in the modfied MFD does not match with the merged regulator driver, it was hard to split the patch. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-04 0:43 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-04 0:43 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Fri, Oct 31, 2014 at 04:44:18PM +0000, Mark Brown wrote: > On Fri, Oct 31, 2014 at 04:08:41PM +0900, gyungoh@gmail.com wrote: > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > This doesn't apply against current code and depends on the MFD symbol > rename - can you please check what's going on here? Are you talking about 'sky81452-regulator'? I am sorry I don't understand. Can you explain in more detail? > > It would make sense to split the Kconfig symbol rename into a separate > patch to ease merging, it doesn't seem obviously related to the driver > change and should probably be in the same patch as the MFD symbol rename > for bisetion. becuase the symbol in the modfied MFD does not match with the merged regulator driver, it was hard to split the patch. ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-11-04 0:43 ` Gyungoh Yoo @ 2014-11-04 0:53 ` Mark Brown -1 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 0:53 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A [-- Attachment #1: Type: text/plain, Size: 892 bytes --] On Tue, Nov 04, 2014 at 09:43:34AM +0900, Gyungoh Yoo wrote: > On Fri, Oct 31, 2014 at 04:44:18PM +0000, Mark Brown wrote: > > This doesn't apply against current code and depends on the MFD symbol > > rename - can you please check what's going on here? > Are you talking about 'sky81452-regulator'? > I am sorry I don't understand. Can you explain in more detail? No, I mean the Kconfig change. > > It would make sense to split the Kconfig symbol rename into a separate > > patch to ease merging, it doesn't seem obviously related to the driver > > change and should probably be in the same patch as the MFD symbol rename > > for bisetion. > becuase the symbol in the modfied MFD does not match with the > merged regulator driver, it was hard to split the patch. I'm having a hard time understanding why it is difficult to split the two changes - they are in completely separate files. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-04 0:53 ` Mark Brown 0 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 0:53 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 892 bytes --] On Tue, Nov 04, 2014 at 09:43:34AM +0900, Gyungoh Yoo wrote: > On Fri, Oct 31, 2014 at 04:44:18PM +0000, Mark Brown wrote: > > This doesn't apply against current code and depends on the MFD symbol > > rename - can you please check what's going on here? > Are you talking about 'sky81452-regulator'? > I am sorry I don't understand. Can you explain in more detail? No, I mean the Kconfig change. > > It would make sense to split the Kconfig symbol rename into a separate > > patch to ease merging, it doesn't seem obviously related to the driver > > change and should probably be in the same patch as the MFD symbol rename > > for bisetion. > becuase the symbol in the modfied MFD does not match with the > merged regulator driver, it was hard to split the patch. I'm having a hard time understanding why it is difficult to split the two changes - they are in completely separate files. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20141104005329.GA3815-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-11-04 0:53 ` Mark Brown @ 2014-11-04 5:45 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-04 5:45 UTC (permalink / raw) To: Mark Brown Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Tue, Nov 04, 2014 at 12:53:29AM +0000, Mark Brown wrote: > On Tue, Nov 04, 2014 at 09:43:34AM +0900, Gyungoh Yoo wrote: > > On Fri, Oct 31, 2014 at 04:44:18PM +0000, Mark Brown wrote: > > > > This doesn't apply against current code and depends on the MFD symbol > > > rename - can you please check what's going on here? > > > Are you talking about 'sky81452-regulator'? > > I am sorry I don't understand. Can you explain in more detail? > > No, I mean the Kconfig change. > > > > It would make sense to split the Kconfig symbol rename into a separate > > > patch to ease merging, it doesn't seem obviously related to the driver > > > change and should probably be in the same patch as the MFD symbol rename > > > for bisetion. > > > becuase the symbol in the modfied MFD does not match with the > > merged regulator driver, it was hard to split the patch. > > I'm having a hard time understanding why it is difficult to split the > two changes - they are in completely separate files. I am sorry for the hard time. That was because the symbol changes had a dependency with 1/8. In this case, Should Kconfig symbol change back from MFD_SKY81452 to SKY81452 in this patch series? And then should I submit to change to MFD_SKY81452 with seperate patch? -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-04 5:45 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-04 5:45 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, Nov 04, 2014 at 12:53:29AM +0000, Mark Brown wrote: > On Tue, Nov 04, 2014 at 09:43:34AM +0900, Gyungoh Yoo wrote: > > On Fri, Oct 31, 2014 at 04:44:18PM +0000, Mark Brown wrote: > > > > This doesn't apply against current code and depends on the MFD symbol > > > rename - can you please check what's going on here? > > > Are you talking about 'sky81452-regulator'? > > I am sorry I don't understand. Can you explain in more detail? > > No, I mean the Kconfig change. > > > > It would make sense to split the Kconfig symbol rename into a separate > > > patch to ease merging, it doesn't seem obviously related to the driver > > > change and should probably be in the same patch as the MFD symbol rename > > > for bisetion. > > > becuase the symbol in the modfied MFD does not match with the > > merged regulator driver, it was hard to split the patch. > > I'm having a hard time understanding why it is difficult to split the > two changes - they are in completely separate files. I am sorry for the hard time. That was because the symbol changes had a dependency with 1/8. In this case, Should Kconfig symbol change back from MFD_SKY81452 to SKY81452 in this patch series? And then should I submit to change to MFD_SKY81452 with seperate patch? ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-11-04 5:45 ` Gyungoh Yoo @ 2014-11-04 11:41 ` Mark Brown -1 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 11:41 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A [-- Attachment #1: Type: text/plain, Size: 675 bytes --] On Tue, Nov 04, 2014 at 02:45:34PM +0900, Gyungoh Yoo wrote: > On Tue, Nov 04, 2014 at 12:53:29AM +0000, Mark Brown wrote: > > I'm having a hard time understanding why it is difficult to split the > > two changes - they are in completely separate files. > I am sorry for the hard time. > That was because the symbol changes had a dependency with 1/8. > In this case, Should Kconfig symbol change back from MFD_SKY81452 > to SKY81452 in this patch series? And then should I submit to change to MFD_SKY81452 > with seperate patch? No, what I'm saying is that if you want to rename the Kconfig symbol you should do that as part of a separate patch to changing the DT stuff. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-04 11:41 ` Mark Brown 0 siblings, 0 replies; 163+ messages in thread From: Mark Brown @ 2014-11-04 11:41 UTC (permalink / raw) To: Gyungoh Yoo Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 [-- Attachment #1: Type: text/plain, Size: 675 bytes --] On Tue, Nov 04, 2014 at 02:45:34PM +0900, Gyungoh Yoo wrote: > On Tue, Nov 04, 2014 at 12:53:29AM +0000, Mark Brown wrote: > > I'm having a hard time understanding why it is difficult to split the > > two changes - they are in completely separate files. > I am sorry for the hard time. > That was because the symbol changes had a dependency with 1/8. > In this case, Should Kconfig symbol change back from MFD_SKY81452 > to SKY81452 in this patch series? And then should I submit to change to MFD_SKY81452 > with seperate patch? No, what I'm saying is that if you want to rename the Kconfig symbol you should do that as part of a separate patch to changing the DT stuff. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 473 bytes --] ^ permalink raw reply [flat|nested] 163+ messages in thread
[parent not found: <20141104114120.GJ3815-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>]
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding 2014-11-04 11:41 ` Mark Brown @ 2014-11-06 4:38 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-06 4:38 UTC (permalink / raw) To: Mark Brown Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A, jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w, jack.yoo-tjhQNA90jdKqndwCJWfcng, linux-kernel-u79uwXL29TY76Z2rM5mHXA, devicetree-u79uwXL29TY76Z2rM5mHXA, grant.likely-QSEj5FYQhm4dnm+yROfE0A, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg, galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8, heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA, shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA, florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A, linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY, jic23-DgEjT+Ai2ygdnm+yROfE0A On Tue, Nov 04, 2014 at 11:41:20AM +0000, Mark Brown wrote: > On Tue, Nov 04, 2014 at 02:45:34PM +0900, Gyungoh Yoo wrote: > > On Tue, Nov 04, 2014 at 12:53:29AM +0000, Mark Brown wrote: > > > > I'm having a hard time understanding why it is difficult to split the > > > two changes - they are in completely separate files. > > > I am sorry for the hard time. > > > That was because the symbol changes had a dependency with 1/8. > > In this case, Should Kconfig symbol change back from MFD_SKY81452 > > to SKY81452 in this patch series? And then should I submit to change to MFD_SKY81452 > > with seperate patch? > > No, what I'm saying is that if you want to rename the Kconfig symbol you > should do that as part of a separate patch to changing the DT stuff. I see. I will split this patch. One is for DT stuff and the other is for Kconfig symbol rename. Thank you for your comment. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding @ 2014-11-06 4:38 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-06 4:38 UTC (permalink / raw) To: Mark Brown Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, Nov 04, 2014 at 11:41:20AM +0000, Mark Brown wrote: > On Tue, Nov 04, 2014 at 02:45:34PM +0900, Gyungoh Yoo wrote: > > On Tue, Nov 04, 2014 at 12:53:29AM +0000, Mark Brown wrote: > > > > I'm having a hard time understanding why it is difficult to split the > > > two changes - they are in completely separate files. > > > I am sorry for the hard time. > > > That was because the symbol changes had a dependency with 1/8. > > In this case, Should Kconfig symbol change back from MFD_SKY81452 > > to SKY81452 in this patch series? And then should I submit to change to MFD_SKY81452 > > with seperate patch? > > No, what I'm saying is that if you want to rename the Kconfig symbol you > should do that as part of a separate patch to changing the DT stuff. I see. I will split this patch. One is for DT stuff and the other is for Kconfig symbol rename. Thank you for your comment. ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v6 8/8] devicetree: regulator: sky81452: Add compatible string for device binding 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh ` (5 preceding siblings ...) 2014-10-31 7:08 ` [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding gyungoh @ 2014-10-31 7:08 ` gyungoh 2014-11-11 11:10 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers Lee Jones 7 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-31 7:08 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v6: Nothing Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Changes v4: Nothing Changes v3: Nothing Changes v2: Added 'compatible' attribute in the driver .../devicetree/bindings/regulator/sky81452-regulator.txt | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt index 882455e..f9acbc1 100644 --- a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -1,6 +1,7 @@ SKY81452 voltage regulator Required properties: +- regulator node named lout. - any required generic properties defined in regulator.txt Optional properties: @@ -9,8 +10,9 @@ Optional properties: Example: regulator { - /* generic regulator properties */ - regulator-name = "touch_en"; - regulator-min-microvolt = <4500000>; - regulator-max-microvolt = <8000000>; + lout { + regulator-name = "sky81452-lout"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers 2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh ` (6 preceding siblings ...) 2014-10-31 7:08 ` [RESUBMIT PATCH v6 8/8] devicetree: " gyungoh @ 2014-11-11 11:10 ` Lee Jones 2014-11-13 13:20 ` Gyungoh Yoo 7 siblings, 1 reply; 163+ messages in thread From: Lee Jones @ 2014-11-11 11:10 UTC (permalink / raw) To: gyungoh Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 Gyungoh, You are still missing Acks for this set. Can you please send it again with the Acks that you have collected thus far. Please do not send it in reply-to these others. I would suggest never sending out the set again in reply-to a previous version, as things get confusing real quick. > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > This patch set includes regulator and backlight driver for SKY81452. > Also it includes documents for device tree and module. > The initial version of sky81452-regulator was applied. Fo this, incremental > patches are included. > > v6: > Added new line character at the end of line of dev_err() > > v5: > Changed DT for regulator : 'lout' node should be defined under 'regulator' > Removed compatible string from sky81452-regulator driver > Modified sky81452-regulator to return EINVAL when of_node is NULL > Move sky81452-backlight.h to include/linux/platform_data > > v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > Removed calling to backlight_device_unregister() in sky81452-backlight > > v3: > Cleaned-up DBG messages > Cleaned-up DT > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > Modified sky81452-regulator to return ENODATA when of_node is NULL > > v2: > Split the patches for each sub-system > Added 'reg' attribute for I2C address in device tree documents > Added 'compatible' attribute in child drivers > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors. > Added vendor prefix for Skyworks Solutions, Inc. > Add SKY81452 to the Trivial Devices list > > Gyungoh Yoo (8): > mfd: Add support for Skyworks SKY81452 driver > backlight: Add support Skyworks SKY81452 backlight driver > devicetree: mfd: Add new SKY81452 mfd binding > devicetree: backlight: Add new SKY81452 backlight binding > devicetree: Add vendor prefix for Skyworks Solutions, Inc. > devicetree: i2c: Add SKY81452 to the Trivial Devices list > regulator: sky81452: Add compatible string for device binding > devicetree: regulator: sky81452: Add compatible string for device > binding > > .../devicetree/bindings/i2c/trivial-devices.txt | 1 + > Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++ > .../bindings/regulator/sky81452-regulator.txt | 10 +- > .../devicetree/bindings/vendor-prefixes.txt | 1 + > .../video/backlight/sky81452-backlight.txt | 24 ++ > drivers/mfd/Kconfig | 12 + > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 109 +++++++ > drivers/regulator/Kconfig | 2 +- > drivers/regulator/sky81452-regulator.c | 29 +- > drivers/video/backlight/Kconfig | 10 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/sky81452-backlight.c | 345 +++++++++++++++++++++ > include/linux/mfd/sky81452.h | 32 ++ > include/linux/platform_data/sky81452-backlight.h | 47 +++ > 15 files changed, 642 insertions(+), 15 deletions(-) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 drivers/video/backlight/sky81452-backlight.c > create mode 100644 include/linux/mfd/sky81452.h > create mode 100644 include/linux/platform_data/sky81452-backlight.h > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers 2014-11-11 11:10 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers Lee Jones @ 2014-11-13 13:20 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-11-13 13:20 UTC (permalink / raw) To: Lee Jones Cc: sameo, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Tue, Nov 11, 2014 at 11:10:37AM +0000, Lee Jones wrote: > Gyungoh, > > You are still missing Acks for this set. Can you please send it again > with the Acks that you have collected thus far. > > Please do not send it in reply-to these others. I would suggest never > sending out the set again in reply-to a previous version, as things > get confusing real quick. I see. I didn't know that reply-to makes a confusing. I will resubmit the patch series. Thank you > > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > > This patch set includes regulator and backlight driver for SKY81452. > > Also it includes documents for device tree and module. > > The initial version of sky81452-regulator was applied. Fo this, incremental > > patches are included. > > > > v6: > > Added new line character at the end of line of dev_err() > > > > v5: > > Changed DT for regulator : 'lout' node should be defined under 'regulator' > > Removed compatible string from sky81452-regulator driver > > Modified sky81452-regulator to return EINVAL when of_node is NULL > > Move sky81452-backlight.h to include/linux/platform_data > > > > v4: > > Removed MODULE_VERSION() > > Modified license to GPLv2 > > Removed calling to backlight_device_unregister() in sky81452-backlight > > > > v3: > > Cleaned-up DBG messages > > Cleaned-up DT > > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > > Assigned mfd_cell.of_compatible for binding device node > > Modified error messages > > Modified sky81452-regulator to return ENODATA when of_node is NULL > > > > v2: > > Split the patches for each sub-system > > Added 'reg' attribute for I2C address in device tree documents > > Added 'compatible' attribute in child drivers > > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > > Added message for exception or errors. > > Added vendor prefix for Skyworks Solutions, Inc. > > Add SKY81452 to the Trivial Devices list > > > > Gyungoh Yoo (8): > > mfd: Add support for Skyworks SKY81452 driver > > backlight: Add support Skyworks SKY81452 backlight driver > > devicetree: mfd: Add new SKY81452 mfd binding > > devicetree: backlight: Add new SKY81452 backlight binding > > devicetree: Add vendor prefix for Skyworks Solutions, Inc. > > devicetree: i2c: Add SKY81452 to the Trivial Devices list > > regulator: sky81452: Add compatible string for device binding > > devicetree: regulator: sky81452: Add compatible string for device > > binding > > > > .../devicetree/bindings/i2c/trivial-devices.txt | 1 + > > Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++ > > .../bindings/regulator/sky81452-regulator.txt | 10 +- > > .../devicetree/bindings/vendor-prefixes.txt | 1 + > > .../video/backlight/sky81452-backlight.txt | 24 ++ > > drivers/mfd/Kconfig | 12 + > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 109 +++++++ > > drivers/regulator/Kconfig | 2 +- > > drivers/regulator/sky81452-regulator.c | 29 +- > > drivers/video/backlight/Kconfig | 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 345 +++++++++++++++++++++ > > include/linux/mfd/sky81452.h | 32 ++ > > include/linux/platform_data/sky81452-backlight.h | 47 +++ > > 15 files changed, 642 insertions(+), 15 deletions(-) > > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > > create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > create mode 100644 include/linux/mfd/sky81452.h > > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 1/8] mfd: Add support for Skyworks SKY81452 driver 2014-10-13 5:47 ` Gyungoh Yoo ` (9 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Move sky81452-backlight.h to include/linux/platform_data Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Changes v2: Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 109 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 154 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1456ea7..a54244c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -693,6 +693,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8bd54b1..d9683ea 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..a38061b --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,109 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/sky81452.h> + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-backlight"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices. err=%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..9d84872 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include <linux/platform_data/sky81452-backlight.h> +#include <linux/regulator/machine.h> + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 2/8] backlight: Add support Skyworks SKY81452 backlight driver 2014-10-13 5:47 ` Gyungoh Yoo ` (10 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh 2014-10-27 7:05 ` Varka Bhadram -1 siblings, 1 reply; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Move sky81452-backlight.h to include/linux/platform_data Changes v4: Reordering header files for readability Removed calling to backlight_device_unregister() Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified DBG messages Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++++ include/linux/platform_data/sky81452-backlight.h | 47 ++++ 4 files changed, 402 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/platform_data/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate "Backlight driver for SKY81452" + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate "TPS65217 Backlight" depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c new file mode 100644 index 0000000..a677be6 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,344 @@ +/* + * sky81452-backlight.c SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/backlight.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/platform_data/sky81452-backlight.h> +#include <linux/slab.h> + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS 0xFF +#define SKY81452_EN 0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define SKY81452_OCP 0x80 +#define SKY81452_OTMP 0x40 +#define SKY81452_SHRT 0x3F +#define SKY81452_OPN 0x3F + +#define SKY81452_DEFAULT_NAME "lcd-backlight" +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) + +#define CTZ(b) __builtin_ctz(b) + +static int sky81452_bl_update_status(struct backlight_device *bd) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(bd->dev.parent); + const unsigned int brightness = (unsigned int)bd->props.brightness; + struct regmap *regmap = bl_get_data(bd); + int ret; + + if (brightness > 0) { + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); + if (IS_ERR_VALUE(ret)) + return ret; + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + pdata->enable << CTZ(SKY81452_EN)); + } + + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); +} + +static int sky81452_bl_get_brightness(struct backlight_device *bd) +{ + return bd->props.brightness; +} + +static const struct backlight_ops sky81452_bl_ops = { + .update_status = sky81452_bl_update_status, + .get_brightness = sky81452_bl_get_brightness, +}; + +static ssize_t sky81452_bl_store_enable(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned long value; + int ret; + + ret = kstrtoul(buf, 16, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, + value << CTZ(SKY81452_EN)); + if (IS_ERR_VALUE(ret)) + return ret; + + return count; +} + +static ssize_t sky81452_bl_show_open_short(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int reg, value = 0; + char tmp[3]; + int i, ret; + + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; + ret = regmap_read(regmap, reg, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + if (value & SKY81452_SHRT) { + *buf = 0; + for (i = 0; i < 6; i++) { + if (value & 0x01) { + sprintf(tmp, "%d ", i + 1); + strcat(buf, tmp); + } + value >>= 1; + } + strcat(buf, "\n"); + } else { + strcpy(buf, "none\n"); + } + + return strlen(buf); +} + +static ssize_t sky81452_bl_show_fault(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); + unsigned int value = 0; + int ret; + + ret = regmap_read(regmap, SKY81452_REG4, &value); + if (IS_ERR_VALUE(ret)) + return ret; + + *buf = 0; + + if (value & SKY81452_OCP) + strcat(buf, "over-current "); + + if (value & SKY81452_OTMP) + strcat(buf, "over-temperature"); + + strcat(buf, "\n"); + return strlen(buf); +} + +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); + +static struct attribute *sky81452_bl_attribute[] = { + &dev_attr_enable.attr, + &dev_attr_open.attr, + &dev_attr_short.attr, + &dev_attr_fault.attr, + NULL +}; + +static const struct attribute_group sky81452_bl_attr_group = { + .attrs = sky81452_bl_attribute, +}; + +#ifdef CONFIG_OF +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + struct device_node *np = of_node_get(dev->of_node); + struct sky81452_bl_platform_data *pdata; + int ret; + + if (!np) { + dev_err(dev, "backlight node not found"); + return ERR_PTR(-ENODATA); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + of_node_put(np); + return ERR_PTR(-ENOMEM); + } + + of_property_read_string(np, "name", &pdata->name); + pdata->ignore_pwm = of_property_read_bool(np, "ignore-pwm"); + pdata->dpwm_mode = of_property_read_bool(np, "dpwm-mode"); + pdata->phase_shift = of_property_read_bool(np, "phase-shift"); + + pdata->gpio_enable = of_get_named_gpio(np, "gpio-enable", 0); + if (IS_ERR_VALUE(pdata->gpio_enable)) + pdata->gpio_enable = -1; + + ret = of_property_read_u32(np, "enable", &pdata->enable); + if (IS_ERR_VALUE(ret)) + pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN); + + ret = of_property_read_u32(np, "short-detection-threshold", + &pdata->short_detection_threshold); + if (IS_ERR_VALUE(ret)) + pdata->short_detection_threshold = 7; + + ret = of_property_read_u32(np, "boost-current-limit", + &pdata->boost_current_limit); + if (IS_ERR_VALUE(ret)) + pdata->boost_current_limit = 2750; + + of_node_put(np); + return pdata; +} +#else +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_bl_init_device(struct regmap *regmap, + struct sky81452_bl_platform_data *pdata) +{ + unsigned int value; + + value = pdata->ignore_pwm ? SKY81452_IGPW : 0; + value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0; + value |= pdata->phase_shift ? 0 : SKY81452_PHASE; + + if (pdata->boost_current_limit == 2300) + value |= SKY81452_ILIM; + else if (pdata->boost_current_limit != 2720) + return -EINVAL; + + if (pdata->short_detection_threshold < 4 || + pdata->short_detection_threshold > 7) + return -EINVAL; + value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT); + + return regmap_write(regmap, SKY81452_REG2, value); +} + +static int sky81452_bl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap = dev_get_drvdata(dev->parent); + struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev); + struct backlight_device *bd; + struct backlight_properties props; + const char *name; + int ret; + + if (!pdata) { + pdata = sky81452_bl_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + + if (pdata->gpio_enable >= 0) { + ret = devm_gpio_request_one(dev, pdata->gpio_enable, + GPIOF_OUT_INIT_HIGH, "sky81452-en"); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to request GPIO. err=%d", ret); + return ret; + } + } + + ret = sky81452_bl_init_device(regmap, pdata); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to initialize. err=%d", ret); + return ret; + } + + memset(&props, 0, sizeof(props)); + props.max_brightness = SKY81452_MAX_BRIGHTNESS, + name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME; + bd = devm_backlight_device_register(dev, name, dev, regmap, + &sky81452_bl_ops, &props); + if (IS_ERR(bd)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(bd)); + return PTR_ERR(bd); + } + + platform_set_drvdata(pdev, bd); + + ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to create attribute. err=%d", ret); + return ret; + } + + return ret; +} + +static int sky81452_bl_remove(struct platform_device *pdev) +{ + const struct sky81452_bl_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct backlight_device *bd = platform_get_drvdata(pdev); + + sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group); + + bd->props.power = FB_BLANK_UNBLANK; + bd->props.brightness = 0; + backlight_update_status(bd); + + if (pdata->gpio_enable >= 0) + gpio_set_value_cansleep(pdata->gpio_enable, 0); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_bl_of_match[] = { + { .compatible = "skyworks,sky81452-backlight", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_bl_of_match); +#endif + +static struct platform_driver sky81452_bl_driver = { + .driver = { + .name = "sky81452-backlight", + .of_match_table = of_match_ptr(sky81452_bl_of_match), + }, + .probe = sky81452_bl_probe, + .remove = sky81452_bl_remove, +}; + +module_platform_driver(sky81452_bl_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver"); +MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/platform_data/sky81452-backlight.h b/include/linux/platform_data/sky81452-backlight.h new file mode 100644 index 0000000..b3635f9 --- /dev/null +++ b/include/linux/platform_data/sky81452-backlight.h @@ -0,0 +1,47 @@ +/* + * sky81452.h SKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SKY81452_BACKLIGHT_H +#define _SKY81452_BACKLIGHT_H + +/** + * struct sky81452_platform_data + * @name: backlight driver name. + If it is not defined, default name is lcd-backlight. + * @gpio_enable:GPIO number which control EN pin + * @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6. + * @ignore_pwm: true if DPWMI should be ignored. + * @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode. + * @phase_shift:true is phase shift mode. + * @short_detecion_threshold: It should be one of 4, 5, 6 and 7V. + * @boost_current_limit: It should be one of 2300, 2750mA. + */ +struct sky81452_bl_platform_data { + const char *name; + int gpio_enable; + unsigned int enable; + bool ignore_pwm; + bool dpwm_mode; + bool phase_shift; + unsigned int short_detection_threshold; + unsigned int boost_current_limit; +}; + +#endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v5 2/8] backlight: Add support Skyworks SKY81452 backlight driver 2014-10-27 7:02 ` [RESUBMIT PATCH v5 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh @ 2014-10-27 7:05 ` Varka Bhadram 2014-10-27 7:19 ` Gyungoh Yoo 0 siblings, 1 reply; 163+ messages in thread From: Varka Bhadram @ 2014-10-27 7:05 UTC (permalink / raw) To: gyungoh, sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On 10/27/2014 12:32 PM, gyungoh@gmail.com wrote: > From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > --- > Changes v5: > Move sky81452-backlight.h to include/linux/platform_data > > Changes v4: > Reordering header files for readability > Removed calling to backlight_device_unregister() > Removed MODULE_VERSION() > Modified license to GPLv2 > > Changes v3: > Modified DBG messages > > Changes v2: > Added 'compatible' attribute in the driver > Added message for exception or errors > > drivers/video/backlight/Kconfig | 10 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++++ > include/linux/platform_data/sky81452-backlight.h | 47 ++++ > 4 files changed, 402 insertions(+) > create mode 100644 drivers/video/backlight/sky81452-backlight.c > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > index 8d03924..2586fdd 100644 > --- a/drivers/video/backlight/Kconfig > +++ b/drivers/video/backlight/Kconfig > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > If you have a Pandora console, say Y to enable the > backlight driver. > > +config BACKLIGHT_SKY81452 > + tristate "Backlight driver for SKY81452" > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > + help > + If you have a Skyworks SKY81452, say Y to enable the > + backlight driver. > + > + To compile this driver as a module, choose M here: the module will > + be called sky81452-backlight > + > config BACKLIGHT_TPS65217 > tristate "TPS65217 Backlight" > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > index fcd50b73..d67073f 100644 > --- a/drivers/video/backlight/Makefile > +++ b/drivers/video/backlight/Makefile > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c > new file mode 100644 > index 0000000..a677be6 > --- /dev/null > +++ b/drivers/video/backlight/sky81452-backlight.c > @@ -0,0 +1,344 @@ > +/* > + * sky81452-backlight.c SKY81452 backlight driver > + * > + * Copyright 2014 Skyworks Solutions Inc. > + * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2, or (at your option) any > + * later version. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/backlight.h> > +#include <linux/err.h> > +#include <linux/gpio.h> > +#include <linux/init.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/of_gpio.h> > +#include <linux/platform_device.h> > +#include <linux/regmap.h> > +#include <linux/platform_data/sky81452-backlight.h> > +#include <linux/slab.h> > + > +/* registers */ > +#define SKY81452_REG0 0x00 > +#define SKY81452_REG1 0x01 > +#define SKY81452_REG2 0x02 > +#define SKY81452_REG4 0x04 > +#define SKY81452_REG5 0x05 > + > +/* bit mask */ > +#define SKY81452_CS 0xFF > +#define SKY81452_EN 0x3F > +#define SKY81452_IGPW 0x20 > +#define SKY81452_PWMMD 0x10 > +#define SKY81452_PHASE 0x08 > +#define SKY81452_ILIM 0x04 > +#define SKY81452_VSHRT 0x03 > +#define SKY81452_OCP 0x80 > +#define SKY81452_OTMP 0x40 > +#define SKY81452_SHRT 0x3F > +#define SKY81452_OPN 0x3F > + > +#define SKY81452_DEFAULT_NAME "lcd-backlight" > +#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > + > +#define CTZ(b) __builtin_ctz(b) > + > +static int sky81452_bl_update_status(struct backlight_device *bd) > +{ > + const struct sky81452_bl_platform_data *pdata = > + dev_get_platdata(bd->dev.parent); > + const unsigned int brightness = (unsigned int)bd->props.brightness; > + struct regmap *regmap = bl_get_data(bd); > + int ret; > + > + if (brightness > 0) { > + ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + pdata->enable << CTZ(SKY81452_EN)); > + } > + > + return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > +} > + > +static int sky81452_bl_get_brightness(struct backlight_device *bd) > +{ > + return bd->props.brightness; > +} > + > +static const struct backlight_ops sky81452_bl_ops = { > + .update_status = sky81452_bl_update_status, > + .get_brightness = sky81452_bl_get_brightness, > +}; > + > +static ssize_t sky81452_bl_store_enable(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned long value; > + int ret; > + > + ret = kstrtoul(buf, 16, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > + value << CTZ(SKY81452_EN)); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + return count; > +} > + > +static ssize_t sky81452_bl_show_open_short(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int reg, value = 0; > + char tmp[3]; > + int i, ret; > + > + reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > + ret = regmap_read(regmap, reg, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + if (value & SKY81452_SHRT) { > + *buf = 0; > + for (i = 0; i < 6; i++) { > + if (value & 0x01) { > + sprintf(tmp, "%d ", i + 1); > + strcat(buf, tmp); > + } > + value >>= 1; > + } > + strcat(buf, "\n"); > + } else { > + strcpy(buf, "none\n"); > + } > + > + return strlen(buf); > +} > + > +static ssize_t sky81452_bl_show_fault(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > + unsigned int value = 0; > + int ret; > + > + ret = regmap_read(regmap, SKY81452_REG4, &value); > + if (IS_ERR_VALUE(ret)) > + return ret; > + > + *buf = 0; > + > + if (value & SKY81452_OCP) > + strcat(buf, "over-current "); > + > + if (value & SKY81452_OTMP) > + strcat(buf, "over-temperature"); > + > + strcat(buf, "\n"); > + return strlen(buf); > +} > + > +static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > +static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > +static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > + > +static struct attribute *sky81452_bl_attribute[] = { > + &dev_attr_enable.attr, > + &dev_attr_open.attr, > + &dev_attr_short.attr, > + &dev_attr_fault.attr, > + NULL > +}; > + > +static const struct attribute_group sky81452_bl_attr_group = { > + .attrs = sky81452_bl_attribute, > +}; > + > +#ifdef CONFIG_OF > +static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > + struct device *dev) > +{ > + struct device_node *np = of_node_get(dev->of_node); > + struct sky81452_bl_platform_data *pdata; > + int ret; > + > + if (!np) { > + dev_err(dev, "backlight node not found"); Missed terminating new line all over the driver for debug error messages.. -- Regards, Varka Bhadram. ^ permalink raw reply [flat|nested] 163+ messages in thread
* Re: [RESUBMIT PATCH v5 2/8] backlight: Add support Skyworks SKY81452 backlight driver 2014-10-27 7:05 ` Varka Bhadram @ 2014-10-27 7:19 ` Gyungoh Yoo 0 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-27 7:19 UTC (permalink / raw) To: Varka Bhadram Cc: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood, jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 On Mon, Oct 27, 2014 at 12:35:36PM +0530, Varka Bhadram wrote: > On 10/27/2014 12:32 PM, gyungoh@gmail.com wrote: > >From: Gyungoh Yoo <jack.yoo@skyworksinc.com> > > > >Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> > >--- > >Changes v5: > >Move sky81452-backlight.h to include/linux/platform_data > > > >Changes v4: > >Reordering header files for readability > >Removed calling to backlight_device_unregister() > >Removed MODULE_VERSION() > >Modified license to GPLv2 > > > >Changes v3: > >Modified DBG messages > > > >Changes v2: > >Added 'compatible' attribute in the driver > >Added message for exception or errors > > > > drivers/video/backlight/Kconfig | 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 344 +++++++++++++++++++++++ > > include/linux/platform_data/sky81452-backlight.h | 47 ++++ > > 4 files changed, 402 insertions(+) > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > > >diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig > >index 8d03924..2586fdd 100644 > >--- a/drivers/video/backlight/Kconfig > >+++ b/drivers/video/backlight/Kconfig > >@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > > If you have a Pandora console, say Y to enable the > > backlight driver. > >+config BACKLIGHT_SKY81452 > >+ tristate "Backlight driver for SKY81452" > >+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > >+ help > >+ If you have a Skyworks SKY81452, say Y to enable the > >+ backlight driver. > >+ > >+ To compile this driver as a module, choose M here: the module will > >+ be called sky81452-backlight > >+ > > config BACKLIGHT_TPS65217 > > tristate "TPS65217 Backlight" > > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > >diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile > >index fcd50b73..d67073f 100644 > >--- a/drivers/video/backlight/Makefile > >+++ b/drivers/video/backlight/Makefile > >@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > > obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o > > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > >+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > >diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c > >new file mode 100644 > >index 0000000..a677be6 > >--- /dev/null > >+++ b/drivers/video/backlight/sky81452-backlight.c > >@@ -0,0 +1,344 @@ > >+/* > >+ * sky81452-backlight.c SKY81452 backlight driver > >+ * > >+ * Copyright 2014 Skyworks Solutions Inc. > >+ * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> > >+ * > >+ * This program is free software; you can redistribute it and/or modify it > >+ * under the terms of the GNU General Public License as published by the > >+ * Free Software Foundation; either version 2, or (at your option) any > >+ * later version. > >+ * > >+ * This program is distributed in the hope that it will be useful, but > >+ * WITHOUT ANY WARRANTY; without even the implied warranty of > >+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > >+ * General Public License for more details. > >+ * > >+ * You should have received a copy of the GNU General Public License along > >+ * with this program; if not, see <http://www.gnu.org/licenses/>. > >+ */ > >+ > >+#include <linux/backlight.h> > >+#include <linux/err.h> > >+#include <linux/gpio.h> > >+#include <linux/init.h> > >+#include <linux/kernel.h> > >+#include <linux/module.h> > >+#include <linux/of.h> > >+#include <linux/of_gpio.h> > >+#include <linux/platform_device.h> > >+#include <linux/regmap.h> > >+#include <linux/platform_data/sky81452-backlight.h> > >+#include <linux/slab.h> > >+ > >+/* registers */ > >+#define SKY81452_REG0 0x00 > >+#define SKY81452_REG1 0x01 > >+#define SKY81452_REG2 0x02 > >+#define SKY81452_REG4 0x04 > >+#define SKY81452_REG5 0x05 > >+ > >+/* bit mask */ > >+#define SKY81452_CS 0xFF > >+#define SKY81452_EN 0x3F > >+#define SKY81452_IGPW 0x20 > >+#define SKY81452_PWMMD 0x10 > >+#define SKY81452_PHASE 0x08 > >+#define SKY81452_ILIM 0x04 > >+#define SKY81452_VSHRT 0x03 > >+#define SKY81452_OCP 0x80 > >+#define SKY81452_OTMP 0x40 > >+#define SKY81452_SHRT 0x3F > >+#define SKY81452_OPN 0x3F > >+ > >+#define SKY81452_DEFAULT_NAME "lcd-backlight" > >+#define SKY81452_MAX_BRIGHTNESS (SKY81452_CS + 1) > >+ > >+#define CTZ(b) __builtin_ctz(b) > >+ > >+static int sky81452_bl_update_status(struct backlight_device *bd) > >+{ > >+ const struct sky81452_bl_platform_data *pdata = > >+ dev_get_platdata(bd->dev.parent); > >+ const unsigned int brightness = (unsigned int)bd->props.brightness; > >+ struct regmap *regmap = bl_get_data(bd); > >+ int ret; > >+ > >+ if (brightness > 0) { > >+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1); > >+ if (IS_ERR_VALUE(ret)) > >+ return ret; > >+ > >+ return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > >+ pdata->enable << CTZ(SKY81452_EN)); > >+ } > >+ > >+ return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0); > >+} > >+ > >+static int sky81452_bl_get_brightness(struct backlight_device *bd) > >+{ > >+ return bd->props.brightness; > >+} > >+ > >+static const struct backlight_ops sky81452_bl_ops = { > >+ .update_status = sky81452_bl_update_status, > >+ .get_brightness = sky81452_bl_get_brightness, > >+}; > >+ > >+static ssize_t sky81452_bl_store_enable(struct device *dev, > >+ struct device_attribute *attr, const char *buf, size_t count) > >+{ > >+ struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > >+ unsigned long value; > >+ int ret; > >+ > >+ ret = kstrtoul(buf, 16, &value); > >+ if (IS_ERR_VALUE(ret)) > >+ return ret; > >+ > >+ ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, > >+ value << CTZ(SKY81452_EN)); > >+ if (IS_ERR_VALUE(ret)) > >+ return ret; > >+ > >+ return count; > >+} > >+ > >+static ssize_t sky81452_bl_show_open_short(struct device *dev, > >+ struct device_attribute *attr, char *buf) > >+{ > >+ struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > >+ unsigned int reg, value = 0; > >+ char tmp[3]; > >+ int i, ret; > >+ > >+ reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4; > >+ ret = regmap_read(regmap, reg, &value); > >+ if (IS_ERR_VALUE(ret)) > >+ return ret; > >+ > >+ if (value & SKY81452_SHRT) { > >+ *buf = 0; > >+ for (i = 0; i < 6; i++) { > >+ if (value & 0x01) { > >+ sprintf(tmp, "%d ", i + 1); > >+ strcat(buf, tmp); > >+ } > >+ value >>= 1; > >+ } > >+ strcat(buf, "\n"); > >+ } else { > >+ strcpy(buf, "none\n"); > >+ } > >+ > >+ return strlen(buf); > >+} > >+ > >+static ssize_t sky81452_bl_show_fault(struct device *dev, > >+ struct device_attribute *attr, char *buf) > >+{ > >+ struct regmap *regmap = bl_get_data(to_backlight_device(dev)); > >+ unsigned int value = 0; > >+ int ret; > >+ > >+ ret = regmap_read(regmap, SKY81452_REG4, &value); > >+ if (IS_ERR_VALUE(ret)) > >+ return ret; > >+ > >+ *buf = 0; > >+ > >+ if (value & SKY81452_OCP) > >+ strcat(buf, "over-current "); > >+ > >+ if (value & SKY81452_OTMP) > >+ strcat(buf, "over-temperature"); > >+ > >+ strcat(buf, "\n"); > >+ return strlen(buf); > >+} > >+ > >+static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable); > >+static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL); > >+static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL); > >+static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL); > >+ > >+static struct attribute *sky81452_bl_attribute[] = { > >+ &dev_attr_enable.attr, > >+ &dev_attr_open.attr, > >+ &dev_attr_short.attr, > >+ &dev_attr_fault.attr, > >+ NULL > >+}; > >+ > >+static const struct attribute_group sky81452_bl_attr_group = { > >+ .attrs = sky81452_bl_attribute, > >+}; > >+ > >+#ifdef CONFIG_OF > >+static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( > >+ struct device *dev) > >+{ > >+ struct device_node *np = of_node_get(dev->of_node); > >+ struct sky81452_bl_platform_data *pdata; > >+ int ret; > >+ > >+ if (!np) { > >+ dev_err(dev, "backlight node not found"); > > Missed terminating new line all over the driver for debug error messages.. > > -- > Regards, > Varka Bhadram. > Oops. I missed them. I will re-submit. Thank you for the comment. ^ permalink raw reply [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 3/8] devicetree: mfd: Add new SKY81452 mfd binding 2014-10-13 5:47 ` Gyungoh Yoo ` (11 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address Documentation/devicetree/bindings/mfd/sky81452.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..4b82a73 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,33 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" +- reg : I2C slave address + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2c { + compatible = "skyworks,sky81452"; + reg = <0x2c>; + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; + + regulator { + lout { + regulator-name = "sky81452-lout"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; + }; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc. 2014-10-13 5:47 ` Gyungoh Yoo ` (12 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 723999d..03e7730 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -137,6 +137,7 @@ sii Seiko Instruments, Inc. silergy Silergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list 2014-10-13 5:47 ` Gyungoh Yoo ` (13 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a 2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256 i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 7/8] regulator: sky81452: Add compatible string for device binding 2014-10-13 5:47 ` Gyungoh Yoo ` (14 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string Modified to return EINVAL when of_node is NULL Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified to return ENODATA when of_node is NULL Modified the messages in error cases Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors. drivers/regulator/Kconfig | 2 +- drivers/regulator/sky81452-regulator.c | 27 ++++++++++++++++++--------- 2 files changed, 19 insertions(+), 10 deletions(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 55d7b7b..fe84bd4 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -547,7 +547,7 @@ config REGULATOR_S5M8767 config REGULATOR_SKY81452 tristate "Skyworks Solutions SKY81452 voltage regulator" - depends on SKY81452 + depends on MFD_SKY81452 help This driver supports Skyworks SKY81452 voltage output regulator via I2C bus. SKY81452 has one voltage linear regulator can be diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 97aff0c..2066e0f 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -65,21 +65,29 @@ static const struct regulator_desc sky81452_reg = { }; #ifdef CONFIG_OF +static struct of_regulator_match sky81452_match = { + .name = "lout" +}; + static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) { - struct regulator_init_data *init_data; struct device_node *np; + int ret; np = of_get_child_by_name(dev->parent->of_node, "regulator"); - if (unlikely(!np)) { + if (!np) { dev_err(dev, "regulator node not found"); - return NULL; + return ERR_PTR(-EINVAL); } - init_data = of_get_regulator_init_data(dev, np); - + ret = of_regulator_match(dev, np, &sky81452_match, 1); of_node_put(np); - return init_data; + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "Error parsing regulator init data. err=%d", ret); + return ERR_PTR(ret); + } + + return &sky81452_match.init_data; } #else static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) @@ -107,8 +115,10 @@ static int sky81452_reg_probe(struct platform_device *pdev) config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); - if (IS_ERR(rdev)) + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register. err=%ld", PTR_ERR(rdev)); return PTR_ERR(rdev); + } platform_set_drvdata(pdev, rdev); @@ -126,5 +136,4 @@ module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); -MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL v2"); -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v5 8/8] devicetree: regulator: sky81452: Add compatible string for device binding 2014-10-13 5:47 ` Gyungoh Yoo ` (15 preceding siblings ...) (?) @ 2014-10-27 7:02 ` gyungoh -1 siblings, 0 replies; 163+ messages in thread From: gyungoh @ 2014-10-27 7:02 UTC (permalink / raw) To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo, treding, florian.vaussard, trivial, linux, andrew, jic23 From: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Changes v4: Nothing Changes v3: Nothing Changes v2: Added 'compatible' attribute in the driver .../devicetree/bindings/regulator/sky81452-regulator.txt | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt index 882455e..f9acbc1 100644 --- a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -1,6 +1,7 @@ SKY81452 voltage regulator Required properties: +- regulator node named lout. - any required generic properties defined in regulator.txt Optional properties: @@ -9,8 +10,9 @@ Optional properties: Example: regulator { - /* generic regulator properties */ - regulator-name = "touch_en"; - regulator-min-microvolt = <4500000>; - regulator-max-microvolt = <8000000>; + lout { + regulator-name = "sky81452-lout"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [RESUBMIT PATCH v3 3/8] devicetree: mfd: Add new SKY81452 mfd binding 2014-10-07 4:55 ` Gyungoh Yoo ` (2 preceding siblings ...) (?) @ 2014-10-07 5:04 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-10-07 5:04 UTC (permalink / raw) To: robh+dt, pawel.moll Cc: mark.rutland, ijc+devicetree, galak, linux-kernel, devicetree, jack.yoo Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com> --- Documentation/devicetree/bindings/mfd/sky81452.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt new file mode 100644 index 0000000..d61904a --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt @@ -0,0 +1,32 @@ +SKY81452 bindings + +Required properties: +- compatible : Must be "skyworks,sky81452" +- reg : I2C slave address + +Required child nodes: +- backlight : container node for backlight following the binding + in video/backlight/sky81452-backlight.txt +- regulator : container node for regulators following the binding + in regulator/sky81452-regulator.txt + +Example: + + sky81452@2c { + compatible = "skyworks,sky81452"; + reg = <0x2c>; + + backlight { + compatible = "skyworks,sky81452-backlight"; + name = "pwm-backlight"; + enable = <0x3F>; + ignore-pwm; + }; + + regulator { + compatible = "skyworks,sky81452-regulator"; + regulator-name = "touch_en"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; + }; -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
* [PATCH v2 7/7] Adding SKY81452 backlight document 2014-08-28 10:38 ` Gyungoh Yoo ` (2 preceding siblings ...) (?) @ 2014-08-28 11:01 ` Gyungoh Yoo -1 siblings, 0 replies; 163+ messages in thread From: Gyungoh Yoo @ 2014-08-28 11:01 UTC (permalink / raw) To: rdunlap; +Cc: jack.yoo, linux-doc, linux-kernel v2: split the patches --- Documentation/backlight/sky81452-backlight.txt | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/backlight/sky81452-backlight.txt diff --git a/Documentation/backlight/sky81452-backlight.txt b/Documentation/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..39f2f8c --- /dev/null +++ b/Documentation/backlight/sky81452-backlight.txt @@ -0,0 +1,26 @@ +backlight driver for sky81452 +========================== + +* Skyworks Solutions SKY81452 : + High-Efficiency, Six-Channel White LED Driver with Touch Panel Bias Supply + +Description +----------- +The SKY81452 is a highly integrated, high-efficiency LED backlight solution for +tablets, notebook computers, monitors, and other portable devices. + +The SKY81452 supports Direct Pulse Width Modulation(DPWM) dimming and Analog +Pulse Width Modulation (APWM). In the DPWM dimming mode, the output waveform +follows the Pulse Width Modulation Input(PWMI) signal and the current level is +set by I2C control and an external RSET resistor. In the APWM mode, the PWMI +signal duty and the I2C brightness control signal are multiplied to control +the output current level. + +The driver exports some additional attributes for SKY81452 backlight. +- enable : Current sink channels. Bit0 is for channel 1, Bit1 is for channel 2 + and Bit2 is for channel 3. In same way, Bit5 is for channel 6. + For example, if 5 is written to this attribute, channel 1 and + channel 3 are enabled. +- open : Shows an open LED fault. +- short : Shows an short LED fault. +- fault : Shows information about over-current and over-temperature. -- 1.9.1 ^ permalink raw reply related [flat|nested] 163+ messages in thread
end of thread, other threads:[~2014-11-13 13:20 UTC | newest]
Thread overview: 163+ messages (download: mbox.gz follow: Atom feed
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2014-08-08 9:08 [PATCH 1/3] Adding Skyworks SKY81452 MFD driver Gyungoh Yoo
2014-08-08 9:08 ` Gyungoh Yoo
2014-08-12 1:51 ` GyungOh Yoo
2014-08-12 7:16 ` Lee Jones
[not found] ` <1407488899-31065-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-08-12 2:21 ` Gyungoh Yoo
2014-08-12 2:21 ` Gyungoh Yoo
2014-08-21 9:45 ` Lee Jones
2014-08-21 9:45 ` Lee Jones
2014-08-21 9:59 ` Thierry Reding
2014-08-21 11:19 ` Lee Jones
2014-08-21 11:19 ` Lee Jones
2014-08-25 7:06 ` Gyungoh Yoo
2014-08-25 7:06 ` Gyungoh Yoo
2014-08-26 8:22 ` Lee Jones
2014-08-26 8:22 ` Lee Jones
2014-08-27 4:06 ` Gyungoh Yoo
2014-08-27 4:06 ` Gyungoh Yoo
2014-08-27 8:39 ` Lee Jones
2014-08-27 8:39 ` Lee Jones
2014-08-28 1:29 ` Gyungoh Yoo
2014-08-28 10:38 ` [PATCH v2 0/7] Adding Skyworks SKY81452 device drivers Gyungoh Yoo
2014-08-28 10:38 ` Gyungoh Yoo
2014-08-28 10:56 ` [PATCH v2 4/7] Adding SKY81452 MFD device tree bindings document Gyungoh Yoo
[not found] ` <1409222307-23225-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-08-28 10:43 ` [PATCH v2 1/7] Adding Skyworks SKY81452 MFD driver Gyungoh Yoo
2014-08-28 10:43 ` Gyungoh Yoo
[not found] ` <1409222631-23293-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-08-29 2:03 ` [PATCH v2.1 " Gyungoh Yoo
2014-08-29 2:03 ` Gyungoh Yoo
2014-09-04 9:28 ` Lee Jones
2014-09-05 4:24 ` [PATCH v2.2 1/7] regulator: sky81452: " Gyungoh Yoo
2014-09-05 4:24 ` Gyungoh Yoo
2014-08-28 10:46 ` [PATCH v2 2/7] Adding Skyworks SKY81452 regulator driver Gyungoh Yoo
2014-08-28 10:46 ` Gyungoh Yoo
2014-08-28 11:02 ` Mark Brown
[not found] ` <20140828110254.GN17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-08-29 2:21 ` Gyungoh Yoo
2014-08-29 2:21 ` Gyungoh Yoo
2014-08-28 10:49 ` [PATCH v2 3/7] Adding Skyworks SKY81452 backlight driver Gyungoh Yoo
2014-08-28 10:49 ` Gyungoh Yoo
2014-08-28 10:49 ` Gyungoh Yoo
2014-08-28 10:58 ` [PATCH v2 5/7] Adding SKY81452 regulator device tree bindings document Gyungoh Yoo
2014-08-28 10:58 ` Gyungoh Yoo
[not found] ` <1409223518-23566-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-09-01 2:46 ` Gyungoh Yoo
2014-09-01 2:46 ` Gyungoh Yoo
2014-08-28 11:00 ` [PATCH v2 6/7] Adding SKY81452 backlight " Gyungoh Yoo
2014-08-28 11:00 ` Gyungoh Yoo
2014-10-07 4:55 ` [RESUBMIT PATCH v3 0/8] Adding Skyworks SKY81452 device drivers Gyungoh Yoo
2014-10-07 4:55 ` Gyungoh Yoo
2014-10-07 4:58 ` [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver Gyungoh Yoo
2014-10-07 8:12 ` Lee Jones
2014-10-07 8:23 ` Gyungoh Yoo
2014-10-07 8:23 ` Gyungoh Yoo
[not found] ` <1412657745-7812-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-10-07 5:01 ` [RESUBMIT PATCH v3 2/8] backlight: Add support Skyworks SKY81452 backlight driver Gyungoh Yoo
2014-10-07 5:01 ` Gyungoh Yoo
2014-10-07 5:01 ` Gyungoh Yoo
[not found] ` <1412658075-7929-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-10-08 1:03 ` Jingoo Han
2014-10-08 1:03 ` Jingoo Han
2014-10-08 1:03 ` Jingoo Han
2014-10-08 8:55 ` Gyungoh Yoo
2014-10-08 8:55 ` Gyungoh Yoo
2014-10-07 5:04 ` [RESUBMIT PATCH v3 4/8] devicetree: backlight: add new SKY81452 backlight binding Gyungoh Yoo
2014-10-07 5:04 ` Gyungoh Yoo
2014-10-07 5:06 ` [RESUBMIT PATCH v3 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc Gyungoh Yoo
2014-10-07 5:06 ` Gyungoh Yoo
2014-10-07 5:09 ` [RESUBMIT PATCH v3 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list Gyungoh Yoo
2014-10-07 5:09 ` Gyungoh Yoo
2014-10-07 5:11 ` [RESUBMIT PATCH v3 7/8] regulator: sky81452: Add compatible string for device binding Gyungoh Yoo
2014-10-07 5:11 ` Gyungoh Yoo
[not found] ` <1412658667-8196-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-10-07 12:52 ` Mark Brown
2014-10-07 12:52 ` Mark Brown
[not found] ` <20141007125221.GG4609-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-10-08 8:51 ` Gyungoh Yoo
2014-10-08 8:51 ` Gyungoh Yoo
2014-10-07 5:13 ` [RESUBMIT PATCH v3 8/8] devicetree: " Gyungoh Yoo
2014-10-07 5:13 ` Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 0/8] Add Skyworks SKY81452 device drivers Gyungoh Yoo
2014-10-13 5:47 ` Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 1/8] mfd: Add support for Skyworks SKY81452 driver Gyungoh Yoo
[not found] ` <1413179262-27636-2-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-10-21 12:30 ` Lee Jones
2014-10-21 12:30 ` Lee Jones
2014-10-23 3:16 ` Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 2/8] backlight: Add support Skyworks SKY81452 backlight driver Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 3/8] devicetree: mfd: Add new SKY81452 mfd binding Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 4/8] devicetree: backlight: Add new SKY81452 backlight binding Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 7/8] regulator: sky81452: Add compatible string for device binding Gyungoh Yoo
2014-10-13 10:35 ` Mark Brown
[not found] ` <20141013103512.GJ27755-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-10-14 1:11 ` Gyungoh Yoo
2014-10-14 1:11 ` Gyungoh Yoo
2014-10-14 7:56 ` Mark Brown
2014-10-17 9:19 ` Gyungoh Yoo
2014-10-17 10:17 ` Mark Brown
2014-10-17 10:43 ` Gyungoh Yoo
2014-10-17 14:26 ` Mark Brown
2014-10-20 6:10 ` Gyungoh Yoo
2014-10-22 10:27 ` Mark Brown
2014-10-23 3:14 ` Gyungoh Yoo
2014-10-23 13:01 ` Mark Brown
2014-10-24 7:54 ` Gyungoh Yoo
2014-10-13 5:47 ` [RESUBMIT PATCH v4 8/8] devicetree: " Gyungoh Yoo
2014-10-27 7:02 ` [RESUBMIT PATCH v5 0/8] Add Skyworks SKY81452 device drivers gyungoh
[not found] ` <1414393369-31583-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
[not found] ` <1413179262-27636-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-10-27 7:02 ` [RESUBMIT PATCH v5 4/8] devicetree: backlight: Add new SKY81452 backlight binding gyungoh-Re5JQEeQqe8AvxtiuMwx3w
2014-10-27 7:02 ` gyungoh
2014-10-31 7:08 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers gyungoh
2014-10-31 7:08 ` [RESUBMIT PATCH v6 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh
[not found] ` <1414739322-12487-2-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-11-03 17:14 ` Lee Jones
2014-11-03 17:14 ` Lee Jones
2014-11-03 21:28 ` Paul Bolle
2014-11-03 21:28 ` Paul Bolle
2014-11-03 22:30 ` Lee Jones
2014-11-03 22:30 ` Lee Jones
2014-11-04 9:05 ` Paul Bolle
2014-11-04 9:05 ` Paul Bolle
2014-11-04 9:16 ` Lee Jones
2014-11-04 9:16 ` Lee Jones
2014-11-04 11:38 ` Mark Brown
2014-11-04 11:38 ` Mark Brown
[not found] ` <20141104113833.GI3815-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-11-04 14:35 ` Lee Jones
2014-11-04 14:35 ` Lee Jones
2014-11-04 10:54 ` Lee Jones
2014-11-04 9:17 ` Lee Jones
2014-11-04 9:17 ` Lee Jones
2014-10-31 7:08 ` [RESUBMIT PATCH v6 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh
2014-10-31 7:08 ` [RESUBMIT PATCH v6 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh
2014-10-31 16:36 ` Mark Brown
[not found] ` <1414739322-12487-4-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-11-03 17:06 ` Lee Jones
2014-11-03 17:06 ` Lee Jones
2014-10-31 7:08 ` [RESUBMIT PATCH v6 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc gyungoh
[not found] ` <1414739322-12487-6-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-11-03 17:07 ` Lee Jones
2014-11-03 17:07 ` Lee Jones
[not found] ` <1414739322-12487-1-git-send-email-jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
2014-10-31 7:08 ` [RESUBMIT PATCH v6 4/8] devicetree: backlight: Add new SKY81452 backlight binding gyungoh-Re5JQEeQqe8AvxtiuMwx3w
2014-10-31 7:08 ` gyungoh
2014-10-31 7:08 ` [RESUBMIT PATCH v6 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list gyungoh-Re5JQEeQqe8AvxtiuMwx3w
2014-10-31 7:08 ` gyungoh
2014-10-31 7:08 ` [RESUBMIT PATCH v6 7/8] regulator: sky81452: Add compatible string for device binding gyungoh
2014-10-31 16:44 ` Mark Brown
[not found] ` <20141031164418.GC18557-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-11-03 21:45 ` Paul Bolle
2014-11-03 21:45 ` Paul Bolle
2014-11-04 0:55 ` Mark Brown
2014-11-06 4:45 ` Gyungoh Yoo
2014-11-06 4:45 ` Gyungoh Yoo
2014-11-04 0:43 ` Gyungoh Yoo
2014-11-04 0:43 ` Gyungoh Yoo
2014-11-04 0:53 ` Mark Brown
2014-11-04 0:53 ` Mark Brown
[not found] ` <20141104005329.GA3815-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-11-04 5:45 ` Gyungoh Yoo
2014-11-04 5:45 ` Gyungoh Yoo
2014-11-04 11:41 ` Mark Brown
2014-11-04 11:41 ` Mark Brown
[not found] ` <20141104114120.GJ3815-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-11-06 4:38 ` Gyungoh Yoo
2014-11-06 4:38 ` Gyungoh Yoo
2014-10-31 7:08 ` [RESUBMIT PATCH v6 8/8] devicetree: " gyungoh
2014-11-11 11:10 ` [RESUBMIT PATCH v6 0/8] Add Skyworks SKY81452 device drivers Lee Jones
2014-11-13 13:20 ` Gyungoh Yoo
2014-10-27 7:02 ` [RESUBMIT PATCH v5 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh
2014-10-27 7:02 ` [RESUBMIT PATCH v5 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh
2014-10-27 7:05 ` Varka Bhadram
2014-10-27 7:19 ` Gyungoh Yoo
2014-10-27 7:02 ` [RESUBMIT PATCH v5 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh
2014-10-27 7:02 ` [RESUBMIT PATCH v5 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc gyungoh
2014-10-27 7:02 ` [RESUBMIT PATCH v5 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list gyungoh
2014-10-27 7:02 ` [RESUBMIT PATCH v5 7/8] regulator: sky81452: Add compatible string for device binding gyungoh
2014-10-27 7:02 ` [RESUBMIT PATCH v5 8/8] devicetree: " gyungoh
2014-10-07 5:04 ` [RESUBMIT PATCH v3 3/8] devicetree: mfd: Add new SKY81452 mfd binding Gyungoh Yoo
2014-08-28 11:01 ` [PATCH v2 7/7] Adding SKY81452 backlight document Gyungoh Yoo
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